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Greg
03-16-2010, 03:13 AM
Here is my condensed history of the 88-98 GMT400 trucks. This is a basic history of the C/K line of trucks. I posted this in the engine performance + maintenance section as there really is no other place on the forum for it...
(Links: 1 (http://www.pickuptrucks.com/html/stories/history/1973-to-1998-chevy-pickups/part2page1.html) 2 (http://www.pickuptrucks.com/html/stories/history/1973-to-1998-chevy-pickups/part2page2.html) 3 (http://en.wikipedia.org/wiki/Chevrolet_C/K) 4 (http://en.wikipedia.org/wiki/GM_Vortec_engine#5700) 5 (http://en.wikipedia.org/wiki/Chevrolet_Small-Block_engine#350)) Also included, is information provided by members of this forum who have responded within the pages of this history and discussion.



GMT400s were introduced in April, 1987 as 1988 models. They started production in Fort Wayne, Ind., Pontiac Mich., and Oshawa, Ontario, Canada.

These trucks featured large doors extending into the roofline and down almost to the bottom of the rocker. With a low step-up height and high headroom, it made for easy entry and exit.
The trucks featured flush side glass, a modular-assembled bonded-flush windshield, single-piece door frames, hidden roof pillars and built-in drip rails.

Trim levels included:
Cheyenne: value standard full-size work truck
Scottsdale: "a big step up in a sensible blend of function and form"
Silverado: top of the line.


Wheelbase:

RCSB: 117.5 in
RCLB: 131.5 in
ECSB:131.5 in
ECLB: 155.5 in
CCLB: 159.5 in


For total frame dimensions check this link: Frame Dimensions PDF (http://www.gmupfitter.com/publicat/1999_BB/LDPDF/CK.PDF)

Quick page reference
Pg 81 RCSB C1-3500 Frame
Pg 82 RCSB K1-3500 Frame
Pg 83 ECSB C1-3500 Frame
Pg 84 ECSB K1-3500 Frame
Pg 85 ECLB C1-3500 Frame
Pg 86 ECLB K1-3500 Frame
Pg 87 CCLB C1-3500 Frame
Pg 88 CCLB K1-3500 Frame


Exterior was 3.5 in narrower than 73-87 trucks, but intrior had more leg and shoulder room and seat travel. Fleetside boxes measured 49.15in between the wheel wells and 63.8in between the side panels. At midyear, Chevy introduced a new K1500 Sportside model on the 117.5-in. wheelbase. It had a 6.5-foot sportside box with fiberglass fenders with steps built in.

2WD trucks used independent coil spring front suspension in all weight classes. 1500/2500s used a semi-floating rear axle and 3500s used a full-floating axle. 4WD had a new IFS with a hypoid driving axle and torsion bars. It utilized a wire-form design for upper control arms with lighter, stronger parts. The torsion bar springs and jounce bumpers were connected to the lower control arms. The torsion bars were computer selected to match a truck’s GVWR and balance with the rear springs. The 4x4 frame had an additional cross member under the transmission. Their new "Shift-On-The-Fly Instra-Trac" system allowed shifts from 4x2 to 4x4 high and back, without stopping, at any speed. The front axle disconnect system locked the front hubs automatically when a lever operating the 4x4 system was pulled back. The shifter connected directly to the transfer case. In 4x2 mode, the front-axle disconnect allowed the front wheels to turn freely. In 4x4 mode, the transfer case split the power equally to the front and rear wheels. The K1500 had off-road option with a front differential carrier, engine and transfer case shields, front stabilizer bar, gas shocks and heavier jounce bumpers.

Greg
03-16-2010, 03:13 AM
1989:
Complementing the Sportside 4x4 was a new Fleetside Sport with a 6.5-foot box. The 4x4 Sports featured blackout wheel flares, bumpers, mirrors, a front air dam and tow hooks. Extensive changes took place in the brake system. The parking brake cable was protected by revised routing and a new shield. To cut noise, a molded, semi-metallic brake lining was used. A new 28MT starter motor and revised engine dipstick lettering were used on 6.2-liter diesel engine-equipped models.

A new Borg-Warner 1370 transfer case with electrically actuated synchronizer was offered for dual rear wheel K3500s, allowing dual rear wheels to be ordered on 1-ton R/Vs and Chassis-Cab models. This increased GVWRs.



1990:
The 454SS was a new high-performance C1500 regular-cab 4x2. Its content included a potent 7.4-liter EFI V8, three-speed automatic, performance handling package and 3.73:1 axle. The 454SS delivered 230 hp at 3600 rpm and 385 lb.-ft. of torque at 1600 rpm. Also standard were a heavy-duty radiator, engine oil and transmission oil coolers and a locking rear differential. It came with bucket seats, a console, a Sport appearance package, air conditioning, AM/FM stereo with cassette, a sliding window, a tilt steering wheel, power door locks and windows, electronic speed control and auxiliary lighting.

The interior was tweaked in 1990 with slightly different "half-moon" gauges, and touched up door panels,

1990 introduced the Work Truck model. (W/T) It was available only as a cheyenne, but featured a different grille and body-color filler panel, charcoal bumper, and W/T ID.
GVWR: 5600
Payloads -
4x2: 1711 lbs
4x4: 1331 lbs

Greg
03-16-2010, 03:14 AM
1991:
Mid-Year updates included new needle gauges to replace the "half-moon" gauges from 1988 to the beginning of 1991.

The new 4L80-E heavy-duty electronic control four-speed automatic overdrive transmission was available for all models rated at or above 8,600-pound GVWRs. It had enhanced shifting precision and smoothness.

A new TBI system was used on the 4.3-liter V6 and 5.0-, 5.7-l and 7.4-liter V8s. It had longer throttle shaft bearings, new return springs and improved fuel mixtures. The 4.3-liter V6 was improved by the use of a revised air cleaner system and processing changes in manufacturing spark plugs. Both the 5.0-liter and 5.7-liter V8s were upgraded with heavy-duty intake valves, powdered metal camshaft sprockets and improved oil pan baffling on the heavy-duty 5.7-liter V8.

The 1991 Work Truck included a new 4-spoke steering wheel and larger outside mirrors. Below-eye-line exterior mirrors became standard on all C/Ks. The standard AM/FM stereo radios were improved with more signal sensitivity and less interference and signal tracking. Air conditioning for C/Ks was improved.

The 454SS option included a Sport steering wheel, black moldings, power locks and windows, tilt steering, cruise, Sport Handling, analog gauges, a tach, a 7.4-liter EFI V8 and a four-speed overdrive automatic transmission.



1992:
The 1992 C/K3500 Crew-Cab was the last Chevy pickup to use the styling first seen in 1988. The all-new Crew-Cab had a four-inch longer wheelbase, seven inches more rear-seat legroom and more front leg and shoulder room. It got antilock brakes. Standard engine was a 5.7-liter V8 linked to a five-speed heavy-duty manual transmission with "deep low" and overdrive.

Greg
03-16-2010, 03:15 AM
1993:
For 1993, the 4.3-liter Vortec V6 got a new balance shaft, revised heads, TBI revisions, a new quiet fan, a new thermostat, a revised oil filter and a new dual-stud air cleaner. Both the 5.0- and 5.7-liter V-8s were improved in the same areas. The 5.0-liter had new low-tension piston pins. A modified version of the 5.7-liter V8 could be converted to CNG, propane or dual-fuel capability.

A new 1500 regular-cab Sportside Sport included Silverado trim, Sport decals, a body-color Dura-Grille, a Sportside box, cast aluminum wheels, painted mirrors and color-keyed bumpers. All trucks had a new "Leading Edge" anti-chip coating applied to the hood, roof and A-pillars. 1993 was the only year in which factory dual exhaust was an option.



1994:
New in 1994 was the Sportside Sport with a "step-side" short-box design. It came in just three colors: Oynx Black, Teal Green Metallic or Victory Red and included matching bumpers and mirrors, a new grille and aluminum wheel finish.

In December 1994, Chevy settled a controversy over older C/K pickup trucks with the U.S. Government. The government dropped its efforts to force a recall of older C/Ks in exchange for a multi-million dollar commitment, from GM, towards future auto safety.
(Article on Safety from the Wall Street Journal (http://walterolson.com/articles/gmtrucks.html/))

Greg
03-16-2010, 03:15 AM
1995:
The interior in all C/K models is updated to a newer refreshing design. New gauges, an updated radio, new seats and door panels round off the interior redesign. New for the exterior were new mirrors with plastic surround and mounting brackets.
1995 is also considered the "odd-ball" of the 88-98 GM C/K trucks as the wiring harness, HVAC controls, and bell housing are not compatible with other years.


1996:
The Extended Cab models gained a third door on the passenger side as an option. On the alloy wheels the center caps were updated from having fake lug nuts to being smooth with no lug nuts exposed. The exhaust tip was reworked with a slight notch.

The V6 and V8 engines were improved with Vortec technology for greater fuel economy, added performance and longer maintenance intervals. Spark plug life and coolant life were extended to 100,000 miles. The Vortec 5700 V8 that was standard or optional on full-size models gained 50 hp over the 5.7-liter.

New:
Daytime Running Lamps (DRL)
Clutch
Electronic Transfer Case


1997:
While the 2-door Tahoe would continue, the 2-door Yukon was discontinued.

The interior gets update once more with the passenger side gaining bulk and losing cupholders with new passenger side airbags.
The 4L60-E got a more sophisticated engine / transmission computer for greater fuel economy and smoother shifts. The steering was updated with a new EVO steering valve/sensor.



1998:
An updated airbag system was used on the steering wheel.
PassLock is introduced to deter vehicle theft.
Rear A/C was introduced in 4 door Tahoes and Yukons.


1999:
Remaining 1998 models are badged as 1999 models to sell off remaining stock in C/K 1500s.
Last model year for most GMT- 400 Tahoes, Suburbans, and Yukons. (Replaced by GMT-800 series.)


2000:
Last model year for C/K 2500 and 3500 Trucks.

Remaining GMT-400 Tahoes were badged as the Limited and the Z71.
- Limiteds were 2WD and only available in black with a two-tone gray leather interior.
- Z71s were 4WD and available in Victory Red, Indigo Blue, Light Pewter, and Emerald Green.
They had painted bumpers and grilles, as well as fog lights and specific 16" alloy wheels.
(These two models shared suspension, brakes, and several other mechanical pieces with the Police Package Tahoe)


2002:
Last model year for C/K 3500 HD trucks featuring the new 8.1L.

Greg
03-16-2010, 03:16 AM
Exterior Badges:
88-91: EFI sticker on lower right corner of tailgate.


GMC:
88-91: Large GMC letters on the center of the tailgate, tailgate width chrome bar was also used to mount the GMC letters to the back of the tailgate.
92-97: GMCTruck in the lower right corner of the tailgate with chrome letters and charcoal surround. Sierra was badged on the lower left corner of the tailgate, also with chrome letters and a charcoal surround.
98-00: GMC in lower right corner of tailgate with chrome letters and charcoal surround. Sierra badged on lower left corner of tailgate, again, with chrome letters and charcoal surround.
88-96: C-Pillar badge is square.
97-00: C-Pillar badge is square with rounded edges.


Chevy:
88-97: Chevrolet on tailgate width chrome bar.
98-00: Chevrolet Silverado badge on lower right corner of the tailgate.
88-97: C-Pillar badge is square.
98-00: C-Pillar badge is square with rounded edges.






Engines:
Six engines were used between 1988-1998.
The 4.3, the 5.0, the 5.7, the 7.4, the 6.2, and the 6.5.
(6.2 and 6.5 were diesels with the latter having a turbo option)


I will illustrate the history of the 5.7L here as it is the most common among GMT400 enthusiasts and owners.


The LO5 was introduced in 1987 for use in GMT400 and still continued older body style K5 Blazers and Suburbans. The Bore and Stroke of the LO5 was 4.000 in x 3.48 in.

Its factory applications included:
1992/1993 Buick Roadmaster
1990-1992 Cadillac Brougham (opt)
1993 Cadillac Fleetwood
1992/1993 Chevy Caprice Wagon (opt)
1993 Chevy Caprice LTZ
1992 Olds Custom Cruiser Wagon

The LO5 was replaced by the GM LT1 after 1993 in B-Body cars until LO5 production ceased in 1996.

The Vortec 5700 L31 is the last production Gen I small-block from Chevrolet (GM). The cylinder heads feature combustion chambers similiar to those of the LT1, but with reverse flow cooling. The L31 heads are compatible with older small-blocks. Vortec heads however use four bolts attaching the intake manifold as opposed to the older and traditional six bolts per head. 2005 model year was the final year for the L31, used in the Kodiak and TopKick, whose small block origins date back to 1955. The Bore and Stroke of the L31 was 4.000 in x 3.48 in.


The L31 produces 255 horsepower and 330 ft lbs of torque.

Its factory applications include:
1996-2003 Chevy Express / GMC Savana
1996-1999 GMT400s (C/K, Suburban, Tahoe-Yukon)

The L31 used TBI in its G-Series vans in 1996.
(also used in Isuzu Box Trucks)

F44 package. Factory 14b 9.5 rear with 1500 Badging but Higher GVW and Bigger rear brakes. And + 1 more leaf spring in the pack. Pretty sure this was available from 88-98 in GMt400 trucks but 88-94 they were badged as 2500's but Still 6 lug just with the F44 package.

95+ F44 trucks were badged as 1500 but were identically equipped to 88-94 trucks.

MIHELA
03-16-2010, 12:11 PM
The entire interior changed in 95.

Cajun4x4
03-16-2010, 12:50 PM
The entire interior changed in 95.

werd... aslo third doror came in 96 not 97, 97 also got the dash reconfigured with a passenger side airbag for 1500 models, 97s where also the first year of the EVO steering valve/sensor, 98 was the first year of pass lock

just off the top of my head

Bigg G
03-16-2010, 01:08 PM
The entire interior changed in 95.

x 2 on the entire interior change in 1995 and adding that 1995 is noted as being the **odd ball year** because there was some other slight changes such as the HVAC controls that looked identical but will not interchange with any other years. l

99z28monster
03-16-2010, 02:21 PM
I thought the 95s have the 4l60e that wont swap into any of the other trucks?

Sierra
03-16-2010, 02:35 PM
I thought the 95s have the 4l60e that wont swap into any of the other trucks?

This is because the wiring harness is specific to the 95 and the bell housing changed after that.

94_C/1500
03-16-2010, 03:42 PM
Some 1500 '99s are GMT 400s. The 2500 and 3500 trucks went to 2000, but I bet a few might of made it to be '01s. The 3500 HD trucks went to 2002, and toward the end had 8.1L motors.

Also, the '94s are the first ones to have 3rd brake lights and '94 was also the year the grilles changed.

Cajun4x4
03-16-2010, 04:37 PM
and mirrors changed in 95. also only 93s had dual tail pipes coming out the back. 97 was the last year of the big metal tail gate banner on chevys,98s resembled GMC tail gate badging styles, 99 and 00ss had chevrolet written out across the whole tail gate again but this time in sticker form. 99+ came with a redesigned air box, and 98+ came with a redesigned charcoal canister. 97 for gmc and 98 for chevy is when the C pillar badge went from square to rounded

Kawikid
03-16-2010, 04:42 PM
This is because the wiring harness is specific to the 95 and the bell housing changed after that.

I could still do a 6.0 swap with the 4l65e and it would fall right into place, I would just have to use the 6.0 harness in a 95 am I correct?

94_C/1500
03-16-2010, 05:40 PM
and mirrors changed in 95. also only 93s had dual tail pipes coming out the back. 97 was the last year of the big metal tail gate banner on chevys,98s resembled GMC tail gate badging styles, 99 and 00ss had chevrolet written out across the whole tail gate again but this time in sticker form. 99+ came with a redesigned air box, and 98+ came with a redesigned charcoal canister. 97 for gmc and 98 for chevy is when the C pillar badge went from square to rounded

It was only an option for Chevys to have the metal banner on the tailgate, GMCs also could have it.

Cajun4x4
03-16-2010, 05:53 PM
oic all the latter year GMCs ive seen have had the small corner badges

94_C/1500
03-16-2010, 06:10 PM
'88-'91 they had the big GMC letters on the tailgate, some had the metal on the tailgate. '92-'97 had GMCTruck on the lower right corner of the tailgate. And '98 and up just said GMC on the lower right corner of the tailgate.

Cajun4x4
03-16-2010, 06:47 PM
ahh good to know... the only one i havent seen is the metal band GMC

1badgmc
03-16-2010, 10:52 PM
'88-'91 trucks had a small "EFI" sticker on the tailgate.

'88-'89 moon gauges were slightly different than the '90-'91 moon gauges. The needle gauges were a mid-year '91 model change.

'88-'89 door panels were slightly different than the '90-'94 door panels.

Greg
03-17-2010, 02:28 AM
Currently updated.

94_C/1500
03-17-2010, 10:53 AM
Didn't the seat belt mounts change on the '96 along with the rear plastic?

1badgmc
03-17-2010, 12:49 PM
Didn't the seat belt mounts change on the '96 along with the rear plastic?

'95 or '96. Not sure. They went from the single post fixed upper mount to the adjustable upper mounts.

Greg
03-17-2010, 12:58 PM
you guys realize i'm gonna run out of room one of these days if you guys keep adding stuff lol :crazy:

1badgmc
03-17-2010, 01:00 PM
Some more.

1996: The aluminum wheels went to smooth center caps as opposed to the caps with the fake lug nuts. You could also identify '96+ trucks by the slight kink in the exhaust tip.

1997: While the 2-door Tahoe continued through the '99 model year, '97 was the final year for the 2-door Yukon.

1998: The first year for rear A/C in 4-door Tahoes/Yukons.

1999: The final year for GMT-400 Yukons and most Tahoes.

2000: 2 GMT-400 carryover Tahoe models continued in 2000; Limited and Z71. Limiteds were 2wd and only available in black with 2-tone gray leather interiors. They shared suspension, brakes and a few other mechanical bits with the Police package Tahoes. Luggage rack delete, painted front and rear bumpers, painted grille, fog lights, a ground effects kit, 16" alloy wheels and a 120 mph speedometer round out the major features. Tahoe Z71s were 4wd and available in Victory Red, Indigo Blue, Light Pewter and Emerald Green. They also had painted bumpers and grilles as well as fog lights and specific 16" alloy wheels.

Sierra
03-17-2010, 01:26 PM
Was 2000 the last year of the OBS crew cab? I had a guy that told me it was 2002 but I didn't think he was right. Maybe it went later on the cab chassis models. Anyone know?

94_C/1500
03-17-2010, 01:50 PM
Was 2000 the last year of the OBS crew cab? I had a guy that told me it was 2002 but I didn't think he was right. Maybe it went later on the cab chassis models. Anyone know?

I've never seen a 4 door C3500HD, so it should be 2000. But maybe a few C3500HDs were four door, maybe some were converted. Some companies made them 4wd, so its possible.

truckmods
05-06-2010, 11:01 PM
Was the 4l60e mentioned for 93' model Year? Electric controled tranny instead of mechanical.

loudz71
05-12-2010, 07:48 PM
Yes. First year for the 4L60E was 1993. 1988-1991 was the 700R4. 1992 was the 4L60


1988-1994 had the chrome tinted windows. 1995 was the first year for black tinted windows.

CodyB
05-17-2010, 06:19 AM
Here is a link to a GM publication for aftermarket bed (equipment) designers and installers for just about any frame measurements, along with tons of other measurements specifically with the 6.5L Diesels.

Use the "Current" 99 measurements to get the OBS, since it has the NBS in there as well.

(After looking at it further, dream up nearly any dimension and it has it, its B-A.)

http://www.gmupfitter.com/publicat/1999_BB/LDPDF/CK.PDF

Quick page reference
Pg 81 RCSB C1-3500 Frame
Pg 82 RCSB K1-3500 Frame
Pg 83 ECSB C1-3500 Frame
Pg 84 ECSB K1-3500 Frame
Pg 85 ECLB C1-3500 Frame
Pg 86 ECLB K1-3500 Frame
Pg 87 CCLB C1-3500 Frame
Pg 88 CCLB K1-3500 Frame

GWKP
05-20-2010, 05:34 PM
also '94 was introduction of the new grille and newer syle third brake light...another theory i hear from ppl and on some formums is that the 98's were somewhat a year alone in the engine compartment, from what ive heard just in the 98's they redesigned the heads or something therefore it produced more engine output.. someone mind clearing this up? BTW great thred

1badgmc
05-20-2010, 07:48 PM
They did change something for '98, but it's in the computer. I have a programmer that will work on the '98+ Vortec 305 & 350, but it won't work on the '96-'97.

GWKP
05-21-2010, 01:20 PM
really...do u have any idea what they did to em? does it produce more output or is that just a myth?

1badgmc
05-21-2010, 01:34 PM
There's no power difference. I don't know that there are any physical differences in the mechanical components, but I do know for a fact that there are some computer differences.

DRAGGIN95
05-21-2010, 01:40 PM
Also, I haven't seen it mentioned but there was also a 130 mph speedo, in the police tahoe's, I have one for my crew cab.

fireball 440
05-30-2010, 07:24 AM
Factory tinted glass, my 1994 has it.

Aloicious
05-30-2010, 07:41 AM
They did change something for '98, but it's in the computer. I have a programmer that will work on the '98+ Vortec 305 & 350, but it won't work on the '96-'97.

the PCM was pretty much the same, but there were at least some wiring changes to the PCM between 96, 97, and 98+...the 96 and 97 used a 5 plug PCM, the 98+ was 4 plug. and even between years there are different wiring pinouts on the PCM's.

the 98+ had a fuel tank vapor pressure sensor, where the 96 and (I think) 97 did not. the fuel pump and sender itself changed in (I think) 98 from the metal 'pump on a stick' style, to a plastic housing style.

1badgmc
05-30-2010, 08:00 AM
Factory tinted glass, my 1994 has it.

Yeah? Ok. :hmm:

frito-bandito
08-23-2010, 03:25 PM
1995:


1997:
While the 2-door Tahoe would continue, the 2-door Yukon was discontinued.

Extended Cabs now came standard with the 3rd door on the passenger side.


I got a 98 ex cab that don't have the third door.

Greg
08-23-2010, 03:58 PM
1995:


1997:
While the 2-door Tahoe would continue, the 2-door Yukon was discontinued.

Extended Cabs now came standard with the 3rd door on the passenger side.


I got a 98 ex cab that don't have the third door.

I'll fix it, and nice catch. I forgot about that, and I did find a '00 GMC ECLB with no 3rd door too.

frito-bandito
08-23-2010, 04:12 PM
Yeah, I was disappointed when I found out that it didn't have the third door when I test drove it.

1badgmc, we are vacationing in the Dallas area soon, how bout hooking my 98 up with some power programming, lol j/k!

1badgmc
08-23-2010, 05:22 PM
1badgmc, we are vacationing in the Dallas area soon, how bout hooking my 98 up with some power programming, lol j/k!

Huh? :hmm:

frito-bandito
08-23-2010, 06:31 PM
They did change something for '98, but it's in the computer. I have a programmer that will work on the '98+ Vortec 305 & 350, but it won't work on the '96-'97.


Sorry, I was messing with you about your programmer ^^^.... nevermind

1badgmc
08-23-2010, 08:12 PM
Sorry, I was messing with you about your programmer ^^^.... nevermind

Oh. Forgot about that post.

It wouldn't do you any good anyhow. It doesn't even do me any good, unfortunately. Even though I returned the tuning to stock on my '99 Yukon before I got rid of it, the programmer is still coded to that VIN and is worthless.

frito-bandito
08-23-2010, 09:03 PM
Damn that sucks, I didn't know that's how they worked.

1badgmc
08-23-2010, 09:27 PM
They get locked onto a VIN so you can't use them on multiple vehicles, but usually if you remove the program, you can then program another vehicle. I guess mine doesn't work that way. Dammit.

crossy's son
11-05-2010, 11:18 PM
NOthing was mentioned about the F44 package. Factory 14b 9.5 rear with 1500 Badging but Higher GVW and Bigger rear brakes. And + 1 more leaf spring in the pack. Pretty sure this was available from 88-98 in GMt400 trucks but 88-94 they were badged as 2500's but Still 6 lug just with the F44 package.

95+ F44 trucks were badged as 1500 but were identically equipped to 88-94 trucks.

Greg
11-05-2010, 11:58 PM
Thanks CS.

dcZ71
11-06-2010, 12:34 AM
crossyson joined! i see you bought an f44 truck, any pics that beast?

crossy's son
11-06-2010, 10:23 PM
Not yet. I don't wanna post pics start modding it and get attached to it I bought it strictly to turn around and resell it after i did some cleaning up on it....I need money. Might as well follow my old man's foot steps Buying/Selling trucks.

this is what it looked like when i bought it.....i've de-old manned it since then and put on 285's for the winter. i think my old man is going to drive it during the winter while i try to sell it.
http://i280.photobucket.com/albums/kk170/cumminsredneck19/94ChevyECSB4x4005.jpg

crossy's son
11-06-2010, 10:24 PM
BTW I paid under $1000 for it and it runs and drives like new. Nuff' said.

FastOrange
11-06-2010, 10:38 PM
Some 1500 '99s are GMT 400s. The 2500 and 3500 trucks went to 2000, but I bet a few might of made it to be '01s. The 3500 HD trucks went to 2002, and toward the end had 8.1L motors.

Also, the '94s are the first ones to have 3rd brake lights and '94 was also the year the grilles changed.

3/4ton's went till '02, i looked at a 2002 OBS CCSB last year at GM.

FastOrange
11-06-2010, 10:40 PM
'95 or '96. Not sure. They went from the single post fixed upper mount to the adjustable upper mounts.

Must be 1996, My dads 1995 was single post fixed.

FastOrange
11-06-2010, 10:41 PM
also '94 was introduction of the new grille and newer syle third brake light...another theory i hear from ppl and on some formums is that the 98's were somewhat a year alone in the engine compartment, from what ive heard just in the 98's they redesigned the heads or something therefore it produced more engine output.. someone mind clearing this up? BTW great thred

Head redesign is a lie, they are still 062's or 906's

FastOrange
11-06-2010, 10:44 PM
Not yet. I don't wanna post pics start modding it and get attached to it I bought it strictly to turn around and resell it after i did some cleaning up on it....I need money. Might as well follow my old man's foot steps Buying/Selling trucks.

this is what it looked like when i bought it.....i've de-old manned it since then and put on 285's for the winter. i think my old man is going to drive it during the winter while i try to sell it.
http://i280.photobucket.com/albums/kk170/cumminsredneck19/94ChevyECSB4x4005.jpg

HI!

Hows your little RCSB doing?

low98
11-07-2010, 09:40 PM
My 98 gmc air box is different then my girlfriend 97 gmc both C1500, the center of the steering wheel is different, the Gmc logo on the back was just GMC on mine and Was GMCTruck on her's. Also the 3rd door was an option not standard. Also my dad seems to believe my truck came stock with 16 inch wheels on it, i dont know if it is true saying it was over eleven years ago when we had those but they did change stuff between the 97-98 years.

crossy's son
11-07-2010, 10:04 PM
HI!

Hows your little RCSB doing?

Just sitting with a cover on it......Haven't touched it in little under a year. Sad i know......

crossy's son
11-07-2010, 10:05 PM
My 98 gmc air box is different then my girlfriend 97 gmc both C1500, the center of the steering wheel is different, the Gmc logo on the back was just GMC on mine and Was GMCTruck on her's. Also the 3rd door was an option not standard. Also my dad seems to believe my truck came stock with 16 inch wheels on it, i dont know if it is true saying it was over eleven years ago when we had those but they did change stuff between the 97-98 years.

I'm 99% sure 2wd trucks never came stock with any kind of 16" wheels.....

mroth2008
11-14-2010, 12:07 AM
1995 bell housings are not specific to that year, they do swap, its a rumour I just finished using stuff out of a 1995 gm pickup into 1988 chev pickup mainly motor, even so if the bellhousing was different the motor wouldn't of bolted up to my turbo400.

FastOrange
11-14-2010, 12:11 AM
My 98 gmc air box is different then my girlfriend 97 gmc both C1500, the center of the steering wheel is different, the Gmc logo on the back was just GMC on mine and Was GMCTruck on her's. Also the 3rd door was an option not standard. Also my dad seems to believe my truck came stock with 16 inch wheels on it, i dont know if it is true saying it was over eleven years ago when we had those but they did change stuff between the 97-98 years.

4x4's came factory with 16's, 2wd's 15's.

FastOrange
11-14-2010, 12:11 AM
Just sitting with a cover on it......Haven't touched it in little under a year. Sad i know......

Dang man, looks like you got yourself a nice ECSB though.

FastOrange
11-14-2010, 12:12 AM
1995 bell housings are not specific to that year, they do swap, its a rumour I just finished using stuff out of a 1995 gm pickup into 1988 chev pickup mainly motor, even so if the bellhousing was different the motor wouldn't of bolted up to my turbo400.

bell housing is same, transmission plugs are a one year only.

SAATR
12-16-2010, 10:47 AM
Rear air on Suburbans was around since at least the late eighties, I can't see why they would have dropped it and picked it back up with the GMT400 in mid production. I have both a '89 and a '97 Suburban, and both have rear air. Perhaps it was only the Yukons and Tahoes that picked it up in '98?

1badgmc
12-16-2010, 11:02 AM
Rear air on Suburbans was around since at least the late eighties, I can't see why they would have dropped it and picked it back up with the GMT400 in mid production. I have both a '89 and a '97 Suburban, and both have rear air. Perhaps it was only the Yukons and Tahoes that picked it up in '98?

I hadn't notice that line before...


1998:
An updated airbag system was used on the steering wheel.
PassLock is introduced to deter vehicle theft.
Rear A/C was introduced in 4 door Tahoes, Suburbans, and Yukons.

...but you are correct. All GMT-400 Suburbans could be had with rear air. The '95-'97 4-door Tahoes/Yukons did not have it though. Only the '98+ did.

Greg
12-16-2010, 12:19 PM
I hadn't notice that line before...

...but you are correct. All GMT-400 Suburbans could be had with rear air. The '95-'97 4-door Tahoes/Yukons did not have it though. Only the '98+ did.

So who's right. I'm confused.

1badgmc
12-16-2010, 12:23 PM
So who's right. I'm confused.

Your line would have been correct if it didn't include Suburbans.

Greg
12-16-2010, 01:12 PM
changed.

1badgmc
12-16-2010, 01:18 PM
changed.

:cool:

1990GMCSIERRA
12-16-2010, 01:31 PM
i say he wrong with or without him fixing it,,what u think jason lol

SAATR
12-16-2010, 10:10 PM
changed.

Schwiggity.

88GMCtruck
12-17-2010, 01:02 AM
It was only an option for Chevys to have the metal banner on the tailgate, GMCs also could have it.

'88-'91 they had the big GMC letters on the tailgate, some had the metal on the tailgate. '92-'97 had GMCTruck on the lower right corner of the tailgate. And '98 and up just said GMC on the lower right corner of the tailgate.
88-91 Stepsides didn't ever have a metal band, they either had no band or a black sticker across the tailgate.


'88-'89 door panels were slightly different than the '90-'94 door panels.
88-89 trucks had black, square PWDL switches. 90-94 used grey switches. They could be had in the earlier square style for lower packaged trucks, or the more common rounded style in Silverados and SLE Sierras.


88-89 used black dash bezels, HVAC, Stereo and switches throughout. In 90 they changed to the better known grey
88-89 trucks had quad sealed beam headlights
88 trucks did not have a z71 option
Fog lights were only available 89-97 for some reason (with the exception of Limited/z71 Tahoes)

1badgmc
12-17-2010, 05:49 AM
88-91 Stepsides didn't ever have a metal band, they either had no band or a black sticker across the tailgate.

My '91 had the black band.



88-89 trucks had black, square PWDL switches. 90-94 used grey switches. They could be had in the earlier square style for lower packaged trucks, or the more common rounded style in Silverados and SLE Sierras.

I know the '88-'89 Chevys had a badge on the door panels denoting the trim level (Cheyenne, Silverado), did GMC do the same?

gmcyukondriver
12-17-2010, 09:59 AM
Some more.

1996: The aluminum wheels went to smooth center caps as opposed to the caps with the fake lug nuts. You could also identify '96+ trucks by the slight kink in the exhaust tip.

1997: While the 2-door Tahoe continued through the '99 model year, '97 was the final year for the 2-door Yukon.

1998: The first year for rear A/C in 4-door Tahoes/Yukons.

1999: The final year for GMT-400 Yukons and most Tahoes.

2000: 2 GMT-400 carryover Tahoe models continued in 2000; Limited and Z71. Limiteds were 2wd and only available in black with 2-tone gray leather interiors. They shared suspension, brakes and a few other mechanical bits with the Police package Tahoes. Luggage rack delete, painted front and rear bumpers, painted grille, fog lights, a ground effects kit, 16" alloy wheels and a 120 mph speedometer round out the major features. Tahoe Z71s were 4wd and available in Victory Red, Indigo Blue, Light Pewter and Emerald Green. They also had painted bumpers and grilles as well as fog lights and specific 16" alloy wheels.

You sure about this? My '95 has rear air. Our mechanic owned it before we did, and I heard that he put it in himself, but the A/C shop said that would've been impractical and incredibly expensive. Anybody know for sure? Is there a way to tell if it was added after?

1badgmc
12-17-2010, 10:27 AM
You sure about this? My '95 has rear air. Our mechanic owned it before we did, and I heard that he put it in himself, but the A/C shop said that would've been impractical and incredibly expensive. Anybody know for sure? Is there a way to tell if it was added after?

I am absolutely 1000% positively sure. Take some pics of your controls, but I KNOW your '95 did not come with it.'98 and '99 only.

MIHELA
12-17-2010, 01:51 PM
Rear AC was available in the Tahoe starting in 97.

1badgmc
12-17-2010, 02:32 PM
Rear AC was available in the Tahoe starting in 97.

Nope.'98.

88GMCtruck
12-17-2010, 02:47 PM
My '91 had the black band.
I know the '88-'89 Chevys had a badge on the door panels denoting the trim level (Cheyenne, Silverado), did GMC do the same?
I had the ugly black band also.
88-89 GMCs also have the trim level emblem on the door panel. They were SL, SLX, & SLE Sierra.

gmcyukondriver
12-17-2010, 05:56 PM
I am absolutely 1000% positively sure. Take some pics of your controls, but I KNOW your '95 did not come with it.'98 and '99 only.

Alright, here they are. If you look closely, the roof console up front has the blank plate, without the auxiliary controls to turn on rear air and such, so it's only A/C in the back and they always have fan control. Also, my rear A/C knob sticks out, anybody know if there's a way to get it flush with the surrounding piece? It works like it is, I would just like it better that way, much cleaner. Anyways, here's the pics:
http://i1220.photobucket.com/albums/dd455/gmcyukondriver/DSCN1214.jpg
http://i1220.photobucket.com/albums/dd455/gmcyukondriver/DSCN1219.jpg
http://i1220.photobucket.com/albums/dd455/gmcyukondriver/DSCN1220.jpg

Makes me feel kinda special.....:deal::naughty:

1badgmc
12-17-2010, 07:03 PM
Looks like they did a good job with it, but without already knowing it's not factory, the lack of rear controls on the front overhead console is the dead giveaway that it's not factory.

1badgmc
12-18-2010, 09:59 AM
http://i1220.photobucket.com/albums/dd455/gmcyukondriver/DSCN1214.jpg

What is with that piece running from your grab handle and infront of the dome light? Is that to conceal a seam in the headliner or something?

gmcyukondriver
12-18-2010, 01:20 PM
I honestly don't know. We've had the truck so long, I just never really noticed it. I'm guessing it's a seam in the headliner, what I don't know is if it's factory or if it is from when they added the rear A/C. Could it be the headliner in front is the same as a pickup, and the rear piece gets added to it?

1badgmc
12-18-2010, 02:48 PM
It's definitely not factory. Factory headliners are one-piece. I'm wondering if maybe they split the headliner there to install the rear air?

88GMCtruck
12-19-2010, 06:06 PM
That is what i figured. Don't the rear ac and non ac tahoes/yukons have headliner different profiles also?

1badgmc
12-19-2010, 07:36 PM
That is what i figured. Don't the rear ac and non ac tahoes/yukons have headliner different profiles also?

That's a good question.

crossy's son
12-25-2010, 01:22 PM
I stopped and looked at a 94 ECLB Z71 the other day it had a 10b rear.

So the thing about all the ECLB 1500's having a 14b (F44) is not true.

1badgmc
01-24-2011, 08:04 PM
A very minor and overlooked change, but '95 was the first year for the single key. '94 and earlier used a separate key for the doors (round) and ignition (rectangular).

Butch
01-24-2011, 08:07 PM
A very minor and overlooked change, but '95 was the first year for the single key. '94 and earlier used a separate key for the doors (round) and ignition (rectangular).

I kind of like having the separate keys with my '91, I didn't mind keeping a hide-a-key on that truck.

What was the first year for remote entry?

1badgmc
01-24-2011, 08:12 PM
I kind of like having the separate keys with my '91, I didn't mind keeping a hide-a-key on that truck.

Agreed. When mine was a daily driver, I had a hide-a-key on it.


What was the first year for remote entry?

That would also be '95.

Aloicious
01-24-2011, 08:21 PM
That would also be '95.

it must have been an extra option or something because my '96 isn't remote entry.

1badgmc
01-24-2011, 08:25 PM
Yes. It was optional.

'95, '96 and I think '97 used the older, square remote fobs. The '98+ models got the rounded fobs.

Greg
01-24-2011, 09:36 PM
Yes. It was optional.

'95, '96 and I think '97 used the older, square remote fobs. The '98+ models got the rounded fobs.

97 got the rounded ones.

dcZ71
01-24-2011, 10:53 PM
Ha that key thing threw me off when I bought my 94, I was like wtf two different types. Then I quickly realized the black one was door only. I like it though.

I had remote entry on my 96.

Butch
01-24-2011, 10:57 PM
I miss my remote entry, my battery died so I took the fob of my key ring only to misplace it in my house somewhere.

FastOrange
01-24-2011, 11:05 PM
Ha that key thing threw me off when I bought my 94, I was like wtf two different types. Then I quickly realized the black one was door only. I like it though.

I had remote entry on my 96.

:think:

My black one is for the ignition, silver is for door.

dcZ71
01-24-2011, 11:07 PM
wtf maybe canadians are backwards :lol:

FastOrange
01-24-2011, 11:11 PM
wtf maybe canadians are backwards :lol:

something to do with different sets of keys.

My main set:
Black Rubber- Ign
Metal (No Cover)- Door

Spare Set:
Metal (No Cover)- Ign
Cut Key- Door

i bet they gave out two sets when you bought it new, probably one was a set of metal keys and the other was rubber black ones.

dcZ71
01-24-2011, 11:13 PM
Hmm I have both sets of keys, but I didnt notice that yet. I'll have to double check.


What was yours butch?

Butch
01-24-2011, 11:34 PM
I had two sets, the original set that came with the truck both factory black rubber coated then a bare set I had cut, with both sets the round one was for the door and rectangular one for ign. (I think).

1badgmc
01-25-2011, 07:17 AM
97 got the rounded ones.

Ok. Some info I was looking at said "upgraded remote entry system" so I wasn't sure if that included the new fob shape or not and I don't recall ever seeing a '97 fob.


I had two sets, the original set that came with the truck both factory black rubber coated then a bare set I had cut, with both sets the round one was for the door and rectangular one for ign. (I think).

Correct. Round for the door and rectangular for the ignition. Both keys are black on both sets of keys for my '94. The keys are both blue on my main set for my '91. :cool:

BLACKed OuT 97-GT
02-01-2011, 02:59 PM
Factory tinted glass, my 1994 has it.

ya 94 is when they came out with the black out tint.

1badgmc
02-01-2011, 03:11 PM
ya 94 is when they came out with the black out tint.

Pre-'94 trucks had privacy glass too. '88-'94 trucks were more of a mirrored tint. '95+ got black tint.

BLACKed OuT 97-GT
02-01-2011, 03:16 PM
Yes. It was optional.

'95, '96 and I think '97 used the older, square remote fobs. The '98+ models got the rounded fobs.

No 98 was the year for the rounded ones. my 97 GT has an older one and ive already looked into the rounded ones years ago.

1badgmc
02-01-2011, 03:18 PM
No 98 was the year for the rounded ones.

I thought that's what I said. :think:

Greg
02-01-2011, 04:15 PM
my 97 has the rounded ones. so idk.

Butch
02-01-2011, 04:17 PM
It one of those small things that were probably changed up mid-stream, it doesn't affect the entire truck platform.

BLACKed OuT 97-GT
02-02-2011, 02:26 AM
I thought that's what I said. :think:

LOL, my bad, I was a little tired when I was reading all this. But ya that is what you said.

:-)

MOBS
04-24-2011, 02:10 PM
WOW that was a good read....11 pages worth. My eyes hurt now almost as much as my head.

If I can remember a few of my oddities that differed from what was posted, I'll list them here:

1995 GMC Sierra SL
Stock Components:
5.7L K-engine
Tremec T5(2nd gen with brass syncros)
2-into-1-into-2 exhaust out the back
ext. cab
6.5' bed
Line-X
Stainless bed rails
35/30/35 front
folding bench rear
3.48:1 axle
30mm anti-sway bar
15x8 rims
275/60-15 Uniroyal Tiger Paw GTS RALLYE EDITION

Aftermarket/changes:
dual exhaust from the 2" piping pre-cat split all the way out the back in same place as stock exits, 8"Lx4"W rolled stainless tips
Cooper Cobras(crappy alternative to the uniroyals that are discontinued)
1/4" injector head riser
6.5"x5.5" air cleaner/element
2.5" tbi spacer
4" cowl hood with SVO-scoop and duct-work for the ram-air blown 427
blown 427
Clark 280 5-speed
ported/polished intake runners and valve pockets
polished intake manifold runners
2"/4" static drop
Thrush DI/DO 3-chamber

Future additions:
Uniroyal Tiger Paw GTZ tires 275/60-15

intimidator4x4
05-28-2011, 03:38 PM
Wheelbase:

RCSB: 117.5 in
RCLB: 131.5 in
ECSB:131.5 in
ECLB: 155.5 in
CCLB: 159.5 in

What about CCSB ????

93$ilverado
08-12-2011, 01:00 AM
I have a 1993 K1500 with the F44 package and its badged as a 1500 so not sure if the reference to the 1994 and earlier F44's badged as a 2500 with 6 lugs is correct.

MIHELA
08-16-2011, 11:31 AM
The C5Z option is badged as a 2500 with 6 lugs. The F44 is badged as a 1500.

BigRedChvy355
12-04-2011, 12:58 PM
Was there any of the GMT400 4x4's that had a 4.10 option on them from the factory?

RHamill
12-04-2011, 01:11 PM
Was there any of the GMT400 4x4's that had a 4.10 option on them from the factory?

The RPO for 4.10 gears is GT5, so from a quick google search of "GMT400 GT5 RPO" I got..

http://www.fullsizechevy.com/forum/archive/index.php/t-454835.html

Read Someotherguy's post.

Hogg
12-14-2011, 11:02 AM
I'm pretty sure you couldnt get a 4.10 gear in a GMT400 with the 10 bolt. You may have been able to get a F44 14 bolt 4.10 ratio like the 1991-93 454SS, but with 6 lug axles.

peace
Hog

tj stone
12-21-2011, 12:37 AM
My 97 silverado has a seperate door and igintion keys. There both gm stamped so I wouldent assume its aftermarket. Any ideas?

canuckz71
12-21-2011, 12:51 AM
Are they just silver keys with a square head that has GM stamped on em? I think they are re cut keys if so

DRAGGIN95
12-21-2011, 12:55 AM
The ignition lock cylinder's that I have bought from O'reilly's come with an OE looking key that say's GM on it.

tj stone
12-21-2011, 07:36 PM
Thanks for the info that must be what

FastOrange
02-07-2012, 01:31 PM
Couple odd options.

-My 1989 Stepside is an SLE,but has crank windows and manual locks, with fancy door panels, no AC, but did have fancy stereo, plus its 4.3L with 3.42's, go figure.
http://i668.photobucket.com/albums/vv44/Low_Orange/DSC_5392.jpg

-Also, the optional tailgate banner for Stepsides, looks like this, no metal one available.
http://i668.photobucket.com/albums/vv44/Low_Orange/DSC_5409.jpg

-1998 Silverado at work, has factory buckets, consoles (roof and floor), fancy door panels, but crank windows and POWER locks, and FACTORY rear seat delete. (Found build sheet in glove box, was special order fleet truck!)
http://i668.photobucket.com/albums/vv44/Low_Orange/WilliamsLake-20110806-00005.jpg

88GMCtruck
02-07-2012, 10:07 PM
My 88 was the same way. The trucks were SLE packaged trucks, with an option called the "super saver package." My grandparents special ordered it this way. Took a fully loaded SLE truck, and took away some options like power windows, locks, tilt column and cassette player.

My truck came as an SLE. 350, 4wd, 3.73s, chrome trim, quad headlamps, cloth seat, a/c and cruise. It was missing tilt, cassette player, power windows and locks.

Not a GMT400, but my 02 was packaged very similarly. uplevel cloth, leather wheel, chrome trim, cd player, ac, but was crank windows, manual locks, no cruise and even a floor shift 4wd (which isn't common in gmt800 trucks)

94_C/1500
03-07-2012, 08:23 AM
My dad just got a '97 K1500 . It is a Silverado with a lot of options and has a sf 14 bolt with the bigger springs (4 leaves and a massive overload) but the truck did not have a hitch and only has a 305. Very odd to me.

ChrisAU
03-07-2012, 08:37 AM
My dad just got a '97 K1500 . It is a Silverado with a lot of options and has a sf 14 bolt with the bigger springs (4 leaves and a massive overload) but the truck did not have a hitch and only has a 305. Very odd to me.

That is odd.

94_C/1500
03-16-2012, 04:15 PM
I don't know When it happened, but there's atleast 2 different wiper arm designs. I changed the wipers on my dads '97 and the ones on my '94 and they are different.

DRAGGIN95
03-16-2012, 09:13 PM
Yes that newer arm's use a different end tip and have a different bend and more spring pressure, it was their attempt to fix the hoping and skipping problem's.

FastOrange
03-19-2012, 03:56 PM
I don't know When it happened, but there's atleast 2 different wiper arm designs. I changed the wipers on my dads '97 and the ones on my '94 and they are different.

88-94 and 95-98 thing, i have 95-98 arms on my 94, made a big difference.

94_C/1500
03-19-2012, 07:45 PM
I've noticed another difference today. My '94 is a SL with sealed beam headlights originally had a color matched filler panel. I've seen a few other trucks like this too. Well, today I changed the grille and filler panel from a late '90s SL and the filler panel matches the grille instead of the truck color. My guess is either mine has some sort of optional equipment or the newer trucks just use gray filler panels. My dad had a '97 SL and it had a gray filler panel too.

FastOrange
03-19-2012, 08:11 PM
I've noticed another difference today. My '94 is a SL with sealed beam headlights originally had a color matched filler panel. I've seen a few other trucks like this too. Well, today I changed the grille and filler panel from a late '90s SL and the filler panel matches the grille instead of the truck color. My guess is either mine has some sort of optional equipment or the newer trucks just use gray filler panels. My dad had a '97 SL and it had a gray filler panel too.

my 94 WT had the grey panel :dunno:

http://i668.photobucket.com/albums/vv44/Low_Orange/imgp0028yi4.jpg?t=1317956357

Beaver's Chevy
05-04-2012, 09:15 AM
1993:
For 1993, the 4.3-liter Vortec V6 got a new balance shaft, revised heads, TBI revisions, a new quiet fan, a new thermostat, a revised oil filter and a new dual-stud air cleaner. Both the 5.0- and 5.7-liter V-8s were improved in the same areas. The 5.0-liter had new low-tension piston pins. A modified version of the 5.7-liter V8 could be converted to CNG, propane or dual-fuel capability.

A new 1500 regular-cab Sportside Sport included Silverado trim, Sport decals, a body-color Dura-Grille, a Sportside box, cast aluminum wheels, painted mirrors and color-keyed bumpers. All trucks had a new "Leading Edge" anti-chip coating applied to the hood, roof and A-pillars. 1993 was the only year in which factory dual exhaust was an option.



1994:
New in 1994 was the Sportside Sport with a "step-side" short-box design. It came in just three colors: Oynx Black, Teal Green Metallic or Victory Red and included matching bumpers and mirrors, a new grille and aluminum wheel finish.

In December 1994, Chevy settled a controversy over older C/K pickup trucks with the U.S. Government. The government dropped its efforts to force a recall of older C/Ks in exchange for a multi-million dollar commitment, from GM, towards future auto safety.
(Article on Safety from the Wall Street Journal (http://walterolson.com/articles/gmtrucks.html/))


Hey Greg,

Would you have any more info/pics of the 1994 Sportside Sport in Teal Green Metallic with the matching bumpers and mirrors? I've tried a google search with no luck. I have that color and was considering changing to late model mirrors and smoothie bumpers and painting them to match, but can't decide if that color would be to much.

Thanks, Erin

j-l-1984
08-29-2012, 11:25 PM
My 92 has power windows, locks, a/c, tilt, but has rubber floor instead of carpet. Looked up rpo codes and it also came with the factory 3.42 limited slip. Also built in Canada, kinda funny considering I live in georgia

outalne94z71
09-03-2012, 12:06 PM
your cclb wheelbase spec on the first page is wrong , 168.5 is the correct wheelbase not 159.5, ec short is 141.5

sewlow
09-03-2012, 12:21 PM
My 92 has power windows, locks, a/c, tilt, but has rubber floor instead of carpet. Looked up rpo codes and it also came with the factory 3.42 limited slip. Also built in Canada, kinda funny considering I live in georgia

At the wreckers the other day, & I came across a '95+ ECSB 4X4. Fully loaded. Air, cruise, PM, PW, PDL, O/H console, cloth Pbucket seats, with rubber flooring & a stickshift. Strange combo! But no tilt column. (Still looking for one of those!)

outalne94z71
09-03-2012, 12:23 PM
Wheelbase:

RCSB: 117.5 in
RCLB: 131.5 in
ECSB:131.5 in
ECLB: 155.5 in
CCLB: 159.5 in

What about CCSB ????

cclb is actually 168.5, the difference in long vs short is 14" so its 154.5 for ccsb

ecsb spec listed is wrong too, 141.5 is the correct length

leeezard7
09-03-2012, 01:08 PM
1991 K3500 was the only year for the 4l80e and np205 combo. and im not sure but think it was only available in a cclb.

outalne94z71
09-03-2012, 04:45 PM
1991 K3500 was the only year for the 4l80e and np205 combo. and im not sure but think it was only available in a cclb.

yes 91 only in the 73-87 body style that the cc had till 91

eric.s.t
10-17-2012, 09:41 PM
I was trying to figure out why a GMT-400 is called a "gmt400" and also, why are we OBS.. what makes us original ... i know theirs oobs... or even nbs and nnbs.... thats it going to be after that.. nnnbs? gmt1000?

1badgmc
10-18-2012, 08:21 PM
I was trying to figure out why a GMT-400 is called a "gmt400"

Because that's what the internal designation for the platform these trucks are built on is called.
'99-'06 is GMT-800 because that's what GM calls it.
'07+ is GMT-900 because that's what GM calls it.
The next generation is doing away with the GMT-### naming system. I just read the other day what it's being called, but I don't remember where I saw it or what it's called. But it will be called that because that's what GM calls it.



and also, why are we OBS.. what makes us original ... i know theirs oobs... or even nbs and nnbs.... thats it going to be after that.. nnnbs? gmt1000?

The OBS and NBS nicknames began when a lot of the original truck forums were really starting to begin to pop up. Most notably it came from www.FullsizeChevy.com FSC began in 2001. When it began, nearly all of the membership owned GMT-400 trucks or the brand new GMT-800 trucks. It was just easier to type OBS or NBS when referring to these trucks. It may have been short-sighted to use those abbreviations, but that's just the way it played out and the names were solid for another 6 years.

I've never subscribed to the OOBS or NNBS stuff. To me, those are square bodies and GMT-900s respectively. I usually use the GMT-800 designation for the "NBS" and have been trying to use GMT-400 for our trucks, even though they will forever be "OBS" in my eyes.

So many people get annoyed, confused, upset or simply think the OBS and NBS terms, but the fact is they exist and now you know why. Just go with it. Resistance is futile. You will be assimilated.

RHamill
10-18-2012, 08:32 PM
Because that's what the internal designation for the platform these trucks are built on is called.
'99-'06 is GMT-800 because that's what GM calls it.
'07+ is GMT-900 because that's what GM calls it.
The next generation is doing away with the GMT-### naming system. I just read the other day what it's being called, but I don't remember where I saw it or what it's called. But it will be called that because that's what GM calls it.




The OBS and NBS nicknames began when a lot of the original truck forums were really starting to begin to pop up. Most notably it came from www.FullsizeChevy.com FSC began in 2001. When it began, nearly all of the membership owned GMT-400 trucks or the brand new GMT-800 trucks. It was just easier to type OBS or NBS when referring to these trucks. It may have been short-sighted to use those abbreviations, but that's just the way it played out and the names were solid for another 6 years.

I've never subscribed to the OOBS or NNBS stuff. To me, those are square bodies and GMT-900s respectively. I usually use the GMT-800 designation for the "NBS" and have been trying to use GMT-400 for our trucks, even though they will forever be "OBS" in my eyes.

So many people get annoyed, confused, upset or simply think the OBS and NBS terms, but the fact is they exist and now you know why. Just go with it. Resistance is futile. You will be assimilated.

Everything in this post is completely accurate and should be posted on the main page. Or even better yet, on Googles home page.

RHamill
10-18-2012, 08:33 PM
Because that's what the internal designation for the platform these trucks are built on is called.
'99-'06 is GMT-800 because that's what GM calls it.
'07+ is GMT-900 because that's what GM calls it.
The next generation is doing away with the GMT-### naming system. I just read the other day what it's being called, but I don't remember where I saw it or what it's called. But it will be called that because that's what GM calls it.




The OBS and NBS nicknames began when a lot of the original truck forums were really starting to begin to pop up. Most notably it came from www.FullsizeChevy.com FSC began in 2001. When it began, nearly all of the membership owned GMT-400 trucks or the brand new GMT-800 trucks. It was just easier to type OBS or NBS when referring to these trucks. It may have been short-sighted to use those abbreviations, but that's just the way it played out and the names were solid for another 6 years.

I've never subscribed to the OOBS or NNBS stuff. To me, those are square bodies and GMT-900s respectively. I usually use the GMT-800 designation for the "NBS" and have been trying to use GMT-400 for our trucks, even though they will forever be "OBS" in my eyes.

So many people get annoyed, confused, upset or simply think the OBS and NBS terms, but the fact is they exist and now you know why. Just go with it. Resistance is futile. You will be assimilated.

Everything in this post is completely accurate and should be posted on the main page. Or even better yet, on Googles home page.

88GMCtruck
10-18-2012, 10:26 PM
Double post = double the importance. :lol:

What he said is exactly true. Back when I was one of those OBS / NBS term users, although i've always called 73-91 squarebody. Once the GMT900 trucks debuted I began calling them by GMT platform name.

96-1500
12-05-2012, 09:07 AM
Not sure if anybody else chimed in on this, I didn't feel like reading through all 14 pages.

"1500/2500s used a semi-floating rear axle and 3500s used a full-floating axle."

Any 1500 HD (F44) or 2500 LD truck with a 14-bolt and 6-lug axles was semi float. Some 8-lug, 8600lb GVW 2500 trucks had semi-floating axles, many (I would guess most) had full-floating axles. I've seen two completely identical K2500s from the same year with the same options, engine, everything, but one will have a SF one a FF. Mine happens to be a SF (see sig, it's an 8-lug, 8600lb K2500).

I don't know whether this was something you could order from the factory, or just whatever GM decided to throw in there. Seems strange to me.

96-1500
12-05-2012, 09:23 AM
Also a question...
What exactly encompassed a Z71 package? I know shocks, skid plates and locking differential, but was there anything else? The reason I ask is, I own two K2500s, one for parts, one is my driver. My driver is a Cheyenne model, plain jane. The other one (basically identical, both are 1996, ECLB, same colour, gear ratio, engine, transmission etc.), is a Silverado option, with power windows, door locks, transfer case etc. It was also ordered with skid plates and a locking rear end, unlike mine. However it is badged just as a "4x4" like mine is. I'm assuming it's basically just the same offroad package as what "Z71s" had, but they didn't do the whole sales gimmick thing as much with the 3/4 tons. Anybody have any idea whether this is true or not? I've seen 3/4 tons badged as Z71 but I'm guessing they just put the sticker on there.

The whole history there seems a little hazy and inconsistent. Not that it really matters, I'm just curious.

ChrisAU
12-05-2012, 09:45 AM
Also a question...
What exactly encompassed a Z71 package? I know shocks, skid plates and locking differential, but was there anything else? The reason I ask is, I own two K2500s, one for parts, one is my driver. My driver is a Cheyenne model, plain jane. The other one (basically identical, both are 1996, ECLB, same colour, gear ratio, engine, transmission etc.), is a Silverado option, with power windows, door locks, transfer case etc. It was also ordered with skid plates and a locking rear end, unlike mine. However it is badged just as a "4x4" like mine is. I'm assuming it's basically just the same offroad package as what "Z71s" had, but they didn't do the whole sales gimmick thing as much with the 3/4 tons. Anybody have any idea whether this is true or not? I've seen 3/4 tons badged as Z71 but I'm guessing they just put the sticker on there.

The whole history there seems a little hazy and inconsistent. Not that it really matters, I'm just curious.

Yeah, Z71's were only available as a half ton package. All the stuff was available for 3/4 tons, but no need to market a Z71 package to the 3/4 and 1 ton markets.

frito-bandito
12-05-2012, 07:29 PM
I've noticed another difference today. My '94 is a SL with sealed beam headlights originally had a color matched filler panel. I've seen a few other trucks like this too. Well, today I changed the grille and filler panel from a late '90s SL and the filler panel matches the grille instead of the truck color. My guess is either mine has some sort of optional equipment or the newer trucks just use gray filler panels. My dad had a '97 SL and it had a gray filler panel too.

Both my 94 and my 98 had/has the grille matched filler panel

bow61509
12-05-2012, 07:33 PM
my 90 sierra has a colormatched filler as well

Sent from my static android

ChrisAU
12-05-2012, 09:01 PM
Both my 92 and 98 had/have color matched fillers.

FastOrange
12-06-2012, 06:24 PM
1995- Speedo goes to 160KPH

1996+- Speedo goes to 180KPH

Sent from my BlackBerry 9800 using Tapatalk

98slv
12-06-2012, 10:18 PM
Yea remember with the new redesigned 07 models, NNBS if you want to, that GM made a big deal about being able to get a Z71 2500 or 3500 and that the 2500 GMC trucks you could get the Denali option. That was becuase they were never advertised or packaged as a Z71 model truck before even though you could get the extra skid plates and better shocks.

Hasn't been talked about again but you can get a 4.10 gear option in our gmt400 trucks. My friends 95 WT 4.3 with a 5 speeed had 4.10 factory gears. His gears blew up, destroying the super awesome aluminum housing, and it took him forever to find a 4.10 axle to replace it. Not sure if they offered the L31 engine with 4.10s though

frito-bandito
12-07-2012, 12:28 AM
Make GMT400 history....
:handshake:

http://i1203.photobucket.com/albums/bb391/VH-Coachworks/Photochops%20and%20Signitures/Paul2copy.png

Click link to vote, your vote counts!!!! http://www.gmt400.com/forum/showthread.php?14951-Important-Decision!-Members-Vote-HERE!

skylark
12-07-2012, 12:51 AM
Our dually has 4.10's.

96-1500
12-07-2012, 09:20 AM
Hasn't been talked about again but you can get a 4.10 gear option in our gmt400 trucks. My friends 95 WT 4.3 with a 5 speeed had 4.10 factory gears. His gears blew up, destroying the super awesome aluminum housing, and it took him forever to find a 4.10 axle to replace it. Not sure if they offered the L31 engine with 4.10s though

Was that truck a 4x4?


Our dually has 4.10's.

I think 98slv was referring to half tons in this case, my 3/4 ton has 4.10s as does my other 3/4 ton parts truck, they aren't super common but they aren't exactly rare either. I've never seen a 1500 with 4.10s but I wouldn't be surprised that they could be ordered. I don't want to picture a 4.3 TBI with 4.10s on the highway though, that would be depressing in the get up and go department.
Reminds me of my old '49 Willys with a 60 odd horsepower inline 4, 3-speed trans and 5.38s. Put it in second gear, let out the clutch and you could almost get out of the cab and walk faster than it.

RPO code GT5 is 4.10 gear ratio, btw.

88GMCtruck
12-07-2012, 09:39 AM
Yea remember with the new redesigned 07 models, NNBS if you want to, that GM made a big deal about being able to get a Z71 2500 or 3500 and that the 2500 GMC trucks you could get the Denali option. That was becuase they were never advertised or packaged as a Z71 model truck before even though you could get the extra skid plates and better shocks.

Hasn't been talked about again but you can get a 4.10 gear option in our gmt400 trucks. My friends 95 WT 4.3 with a 5 speeed had 4.10 factory gears. His gears blew up, destroying the super awesome aluminum housing, and it took him forever to find a 4.10 axle to replace it. Not sure if they offered the L31 engine with 4.10s though
Well you could get the same equipment as a Z71 in just about any truck, it just wasn't under the RPO Z71. Usually it was multiple options.

I think the Sierra Denali HD started around 2009.


Our dually has 4.10's.


Was that truck a 4x4?



I think 98slv was referring to half tons in this case, my 3/4 ton has 4.10s as does my other 3/4 ton parts truck, they aren't super common but they aren't exactly rare either. I've never seen a 1500 with 4.10s but I wouldn't be surprised that they could be ordered. I don't want to picture a 4.3 TBI with 4.10s on the highway though, that would be depressing in the get up and go department.
Reminds me of my old '49 Willys with a 60 odd horsepower inline 4, 3-speed trans and 5.38s. Put it in second gear, let out the clutch and you could almost get out of the cab and walk faster than it.

RPO code GT5 is 4.10 gear ratio, btw.

Friend of mine's father has a 96 K3500 454 NV4500 truck with factory G80 and Facotry 4.56s. Thing is a low end grunting machine.

98slv
12-07-2012, 10:29 AM
Yes it was 4x4, it had a hypertext chip and it was a fun truck to drive, more power than what you'd think from it. But we put a three inch body lift on 6 inch suspension and swapped a canned tbi 350. Shortly after shelled the tranny so then it got rebuilt too lol. Live and learn

96-1500
12-07-2012, 02:14 PM
Friend of mine's father has a 96 K3500 454 NV4500 truck with factory G80 and Facotry 4.56s. Thing is a low end grunting machine.

I want.
That would be the answer for a stock-truck pull.

frito-bandito
12-07-2012, 05:13 PM
Wow that thing must be a beast!!

Sent from the frito crumb covered Android via Tapatalk 2

98slv
12-12-2012, 07:13 PM
So what about this truck? I've never seen one this color.... Says its a 99 but it has a white Chevrolet sticker on tailgate but has the 98 Chevy style steering wheel/airbag and the ls badges have rounded corners.

So is this one of the few 99 classics and was it the only year of this color?

http://i1048.photobucket.com/albums/s377/98slv/Screenshot_2012-12-12-19-04-07_zpsd48cc829.png

FastOrange
12-13-2012, 12:18 AM
So what about this truck? I've never seen one this color.... Says its a 99 but it has a white Chevrolet sticker on tailgate but has the 98 Chevy style steering wheel/airbag and the ls badges have rounded corners.

So is this one of the few 99 classics and was it the only year of this color?

http://i1048.photobucket.com/albums/s377/98slv/Screenshot_2012-12-12-19-04-07_zpsd48cc829.png

I don't really get your question, if it wasn't a 99 classic it would be a NBS, and yes I bealieve its 99+ only

Sent from my BlackBerry 9800 using Tapatalk

98slv
12-13-2012, 07:04 AM
My question is did they drop the tailgate badge for 98 then bring it back in 99?

And was this the only year for that color?

ChrisAU
12-13-2012, 07:08 AM
The big silver tailgate banner ended in 97. Most 98's just had a Silverado emblem on the tailgate. However, white/black CHEVROLET tailgate decals were on certain trucks for the whole GMT400 run.

88GMCtruck
12-13-2012, 10:30 AM
Yes. That is a 99+ GMT400 color that I believe was shared with the GMT800 platform. My 99 K2500 was that color, and I've seen quite a few suburbans/tahoes/yukons in that color around.

Definitely one of my favorite colors.

http://i307.photobucket.com/albums/nn305/88gmctruck/99%20Silverado/2011-07-11_12-30-26_69.jpg
http://i307.photobucket.com/albums/nn305/88gmctruck/99%20Silverado/2011-07-13_14-47-04_687.jpg

frito-bandito
12-13-2012, 04:42 PM
Is that like a charcoal gray??

Sent from the frito crumb covered Android via Tapatalk 2

88GMCtruck
12-13-2012, 04:45 PM
Yes it is.

frito-bandito
12-13-2012, 04:48 PM
Yes it is.

I've seen a few of those, that color looks sweet on the 400s!

Sent from the frito crumb covered Android via Tapatalk 2

96-1500
12-13-2012, 05:26 PM
Yes. That is a 99+ GMT400 color that I believe was shared with the GMT800 platform. My 99 K2500 was that color, and I've seen quite a few suburbans/tahoes/yukons in that color around.

Definitely one of my favorite colors.

http://i307.photobucket.com/albums/nn305/88gmctruck/99%20Silverado/2011-07-11_12-30-26_69.jpg
http://i307.photobucket.com/albums/nn305/88gmctruck/99%20Silverado/2011-07-13_14-47-04_687.jpg

I want your old truck.

frito-bandito
12-13-2012, 05:29 PM
I want your old truck.

X2

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88GMCtruck
12-13-2012, 08:16 PM
It was forsale last march. In many ways I miss that truck. The 6.5L NV4500 combo was awesome. But, by selling it I was able to drop a payment, and save on insurance/maintenance costs so I could concentrate on the 88 instead.

Horns
12-13-2012, 08:23 PM
Didn't the original 6.5 give up?

-Via Mobile-

88GMCtruck
12-13-2012, 08:25 PM
I had a runaway PMD that destroyed the turbo, shortly after I had sludgy oil from a headgasket. Caught both in time, replaced the headgaskets and turbo, didn't have any issues after that.

Well except for the occasional passlock. What a joke of a system.

sherfield2002
07-08-2013, 03:20 PM
I am absolutely 1000% positively sure. Take some pics of your controls, but I KNOW your '95 did not come with it.'98 and '99 only.

My 1997 Yukon has factory rear A/C, RPO C69

sewlow
02-14-2014, 07:59 PM
http://m.imgur.com/gallery/kDQ0SgK

Hood93z
04-11-2014, 03:25 AM
1993 was the first year for the 4L60E trans

In 1995 the trans was identical and will interchange with 93 an 94 however it would not operate correctly due to wiring changes and shift sensors that hook up to the shift cable

All gmt-400s before 93 used 700r4 or older style trans

Also when GM put the 4L60E in mass production they made changes to the transfer case an front driveshaft (they did away with the flange type driveshaft)

1992 was the first year they offered an extended cab step side 4x4 also