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  1. mr98z71

    Viper (DEI) vs Compustar DIY

    Hi all, I've installed a few DEI remote start/security systems in the past for friends and family. All of which are still working great, now it's time to install one in my own vehicle. Any input on Viper vs Compustar for a diy? I like DEI because I can change settings with or without the...
  2. mr98z71

    Bad Vibrations

    Hi all, been trying to chase down a driveline vibration for the past couple of years now. 98 GMC 4x4 1/2 ton with a rcx 6" lift. I get a vibration that starts at 70 mph and doesn't go away even if I go faster, I also get a vibration for 1-2 seconds when I let off the gas going 50mph and over...
  3. mr98z71

    Steering Box Differences (88-98)

    So after having removed the EVO Fitting on the back of my 98 K1500 power steering pump, i found that my steering is way too easy to steer on the highway. After doing some research, I was told to swap my gear box with one out of a 98. I also found that the P# for the 96 trucks were only used for...
  4. mr98z71

    Beginning SAS, Have few questions!

    Finally found me a Dana 44 HP out of a 78 Ford, my problem is that the axle is 5 lug, as per ORD, I need to find a chevy axle (6 lug). What would I all need from the chevy axle, just wondering if it would be cheaper to buy another entire axle or just a few parts. I know a Dana 60 would be...
  5. mr98z71

    No Lights at 4x4 Dash Selector

    So I've had my truck parked for 6 months now (Welded in new body panels), took out my truck for the first time, no lights on the 4x4 selector switch, next day, started her up, 2wd was light up, couple days ago, no lights, couldn't shift in 4x4 and this time I really needed it. I am an...
  6. mr98z71

    No lights at 4x4 Selector (Dash)

    So I've had my truck parked for 6 months now (Welded in new body panels), took out my truck for the first time, no lights on the 4x4 selector switch, next day, started her up, 2wd was light up, couple days ago, no lights, couldn't shift in 4x4 and this time I really needed it. I am an...
  7. mr98z71

    Truck Box, RUST Free!

    Hi, Looking for a bed for my 1998 GMC Sierra, Has to be rust free and near mint, Posting From Canada but am willing to travel for the right box.
  8. mr98z71

    Truck Boxa, RUST Free!

    Hi, Looking for a bed for my 1998 GMC Sierra, Has to be rust free and near mint, Posting From Canada but am willing to travel for the right box.
  9. mr98z71

    Fender Flares

    Hey All, Got a 98 GMC with 6'' lift and 35's. Finally looking at throwing some Flares on her, was primarily looking at Bushwacker products, can't decide between the OE and the extend a fender flares, Pictures on Bushwacker's site don't seem to do them justice. Post pics of what you have and let...
  10. mr98z71

    Air Bag System write up (short)

    So I figured I would do a quick write up concerning the Air Bag system on these trucks, so that you guys don't have to go through what I experienced, lol. So I was replacing my multifunction switch this past week, Had to take the drivers side air bag off to take off the steering wheel. By the...
  11. mr98z71

    Multifunction Switch Schematic

    Upon replacement of the multifunction switch on my 1998 Chevy 4x4, I noticed that there is 3 wires that have burnt off of the connector, I haven't noticed anything not working so this is really bugging me. I looked everywhere but can't find a wiring diagram for the mfs. If anybody has the...
  12. mr98z71

    5.7 Vortec Cam, Worth it?

    I have my whole motor taken apart in my 1998 Gmc Sierra (5.7 L Vortec). I am replacing all the gaskets. At this point and time, I'm wondering if it would be worth swapping a cam in there. I heard a couple good things about the Lt4 Hot Cam but I would have to replace Valve springs and what not...
  13. mr98z71

    Stiff Steering Question, Lifted Trucks!

    Hey, I don't know If this problem has just started or if it's something that I just never noticed before but, at Idle, I can turn my steering wheel 1/4 turn then it is like manual steering (impossible) to turn the wheel further unless I start moving. This makes it really hard to parallel park! I...
  14. mr98z71

    Ad244 Alternator Swap + Mod

    I just wanted to do a quick write up and add a little more info to the existing thread on swapping the factory alternator with the High Output Alternator (AD244) from the newer trucks (99-05). I am also going to have to say That I am not responsible for anything that happens to your truck, be...
  15. mr98z71

    4x4 Hum and Vibration at 45-50 mph and up

    I have recently re geared my rear and front diffs to 4.88's and put a 6" lift kit on my truck. I am very happy on how they turned out (patterns, backlash and preloads were to spec). Now that winter hit, I have been using 4x4 quite a bit. I noticed this very weird hum and vibration which is only...
  16. mr98z71

    5.7 Vortec hard time starting in the cold!

    Over the past summer, I spent over $1000 on a tune up for my truck. My first winter with the truck (last winter), the truck had such a hard time starting in the 40 below weather we have here in Winnipeg, MB. I installed a 2nd battery but the truck would kill two 1000 CCA Battery's without even...
  17. mr98z71

    Torsion bar Stuck for 6" Lift kit

    Hey, I am in the process of installing my 6" RCX lift kit but within the past 3 days, I haven't gotten any further than instruction number 3. I unloaded the torsion bars, I have been soaking them in pb blaster for 3 days, the passenger bar is loose (I can move it in and out of the A arm). The...
  18. mr98z71

    6" RCX Vs Better?

    Hi, I am wanting to lift my truck. It's a 98 K1500 Z71. A local suspension dealer in town is telling me that he doesn't sell RCX because they are pure garbage. His cheapest lift would be a Zone Lift for $1700. I know this is very high because I can get a Zone lift Online for around $1100. My...
  19. mr98z71

    14 bolt 9.5" sf detroit locker 4.88 yukon gears.

    So, i am in the process of installing a detroit locker in my 14 bolt. I am installing new 4.88 Yukon ring and pinion. Now, yeasterday, when i went to install the carrier in the diff housing, the yoke is hard to turn at the three oclock position then it gets fairly easy to turn. I have 0.0005...
  20. mr98z71

    14 Bolt SF Build

    Hi Guys, It's been a while since I posted since I was so busy buying parts so my truck! Anyways, I am building a 14 Bolt SF 9.5" rear for my 1998 Gmc Z71. I am going to be putting in a Detroit Locker with some 4.88 both front and back (obviously) and some disc brakes out back. My question is...
  21. mr98z71

    14 Bolt semi float year

    First off, My name is Jo-eL and I own a 98 Gmc Z71, I am new to this site. So my 10 Bolt finally gave up on me, I shot a spider gear right through the diff cover. I went to the junk yard and picked up a 14 Bolt Gm 9.5" Semi-Floating axle with the 6 lug pattern. I want to buy a rebuild kit...

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