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  1. RDF1

    '98 Sleeper

    I'll have to get better picture tomorrow. But here is the truck on its first drive after I finished this morning for a customer. Looks and sounds stock with a exhaust.
  2. RDF1

    6L80/6L90 swap

    Anybody gave these 6L transmissions a try in the older trucks? I've ordered the Holley 6L80/90 Controller. Kinda curious as to what back to back to back comparisons would be with a 4l60/4l80/6l80 setup and same engine/rear gear.
  3. RDF1

    TH400 4wd to 2wd

    Anybody ever tried converting a 4wd unit to a 2wd? I swapped out some labor for a low mileage (after rebuild) 4wd 400. Thought it would be easy to sale, but no luck. Got a guy wanting a 400 for his turbo 5.3 mustang. But can't find much information on the swap and what's involved Sent from my...
  4. RDF1

    Transfer case cooler

    Anybody ever monitored their transfer case fluid temps? I'm lookin to try and make a cooler for a 263HD and haven't seen anybody mention anything like it on the internetz. Sent from my SAMSUNG-SM-G870A using Tapatalk
  5. RDF1

    Head light bulbs

    What are your preferred head lights? I think my 91 has 9005/9006 bulbs and now that it's getting dark earlier I'm lookin for options. I have some cheap no name bulbs in there now. Sent from my HiDiNg PlAcE
  6. RDF1

    Rear Gears vs Fuel Mileage

    So I've been thinking alot and trying to figure out if this will work or not. Quick down and dirty on the setup 91 C1500 2wd Regular cab Stepside (4100#) 5.3 LM7 Factory 706 heads 90# bosch injectors ISKY 212/212 .561/.561 114 cam S475/83 Turbo (W/A intercooled) 4L80E (2800 circle D stall)...
  7. RDF1

    Windsheild wiper motor wiring

    Got this connector to hookup my wipers... my only problem is I don't have the factory connector to see what pins are what. The new connector and the wiper motor pins aren't labled. Anybody take a pic of their connector under the hood and post up? Factory color wires would be awesome. I can...
  8. RDF1

    Truck Weight

    Have any of you guys weighed your trucks? If so, how heavy was it?
  9. RDF1

    1991 Steering Column Wiring Diagram

    I've found several diagrams online and in manuals but I've got some extra wires than all those mention. I've gutted the interior and trying to piece together the blinkers from the multifunctional switch on the column. My issue is I have a green with white stripe and a Tan wire that I can't...
  10. RDF1

    Leaf Spring Removal

    After figuring out that i am missing the overload leaf spring on my '91 and i have Caltracs, I am debating removing the bottom leaf spring and seeing how it rides. Reason im thinking about this is i think the truck has 3" lowering shackles and i cant bolt my bed back down. I have about a 3/4"...
  11. RDF1

    Air Conditioning

    So on my 1991 i gutted the interior since it was trashed. Built a new dash with center console. Before i cut out all the aluminum for the dash skins i am thinking of a HVAC box under the dash. Ill be making the whole system so trying to figure out what Evaporator and Heater Core to use. I want...
  12. RDF1

    Turbo LS Swap with A/C

    Ive been looking all over the interwebz and havent found anyone that is running AC with a front mount turbo. Just got off the phone with Dirty Dingo Tech Line and i think im going to try the SD7B10 mini compressor on the driver side if i can fab up some brackets. But i might have to just sweat...
  13. RDF1

    What color for interior?

    So in my project truck that is black, i POR15 the floor pan and inner firewall so thats black too. Seats are black also. My center console and dash will all be Aluminum and debating what color carpet i should get and what color to paint/powder coat the dash and center console. Whats your...
  14. RDF1

    Header wrap

    Anyone had any dealings with header wrap??
  15. RDF1

    1991 C1500 Brake Switch Wiring Diagram

    Ive got my brake switch off testing it and i see diagrams showing the White and Orange wires are connected to a switch and the pink/black and purple are connected to a switch. But the Green and gray/black wire arent on any diagrams i can find. Anybody know what they go to?
  16. RDF1

    Leaf spring count

    Dumb question but how many leaf springs are on the early 90s C1500. Trying to determine if mine has all of the factory springs or if one has already been removed. I have 3 leafs. Did they come with 4? or 3?
  17. RDF1

    Bump Stops

    What are you guys using for bump stops? I got to looking last night when i had the bed off and noticed im going to bottom out my shock before it hits the bumpstop. Truck has lowering shackles so nothing crazy. But i have S10 shocks on the rear moved to the front of the axle to give me room to...
  18. RDF1

    1991 C1500 Hydroboost swap issues

    Soooo.... I bought some parts and think I got the wrong ones. I ordered a Cardone 52-7328 (JB8?) off Amazon and it's for a 1991 C2500. Which that's no problem I can make it fit and mod the Vacuum pedal to line up with the pedal rod. My issue is I bought a ACDELCO master cylinder that is part...
  19. RDF1

    1991 C1500 TURBO 5.3/4L80E

    Figured id start a thread detailing my whole build since August 2017. My buddy had this truck since new back in '91. It had a 4.3/NV3500 in it for awhile. Then he put a supercharger on it to pull his boat. That lasted about 100k miles and decided to put a 350/700R4 in it. Then a...
  20. RDF1

    Wheels

    Ive been going crazy looking at different wheels and about the only thing i can come up with is this. I want to run a 17" wheel for daily driving but wanted a matching style 15" for the rear to run a 295/55/15 DR or 28-10.5x15 Slick for the track. The Cragar Soft 8 is the only wheel i can...
  21. RDF1

    C1500 Front Brake upgrade to C2500 Caliper/rotor

    I might have misunderstood some other post. Here is what i have, 1991 C1500 and going to C2500 Calipers. The C1500 rotors looked small (1" Wide). So i went to the store and got some C2500 (5 Lug) rotors (1.25" wide). Got back to the shop and noticed the rotors had races in them but no bearings...
  22. RDF1

    Roll Cage

    Anyone have dealings with roll cages for the 400 trucks? Ive been looking around the net and have found a few kits but cant find any reviews or such on them. Id really like to do a 8 point style but not go through the rear window. So it would be a 6 point and might go through the rear of the...
  23. RDF1

    4" Exhaust?

    Been doing a lot of reading and never seen it mentioned on here. Anybody running 4" exhaust?:D On the '91 i have right at 48" of room from the trans cross member till the rear shock so i found a 30" 7" round muffler and a 18" 6" round resonator. Well there went all that room. I have 3.5" down...
  24. RDF1

    Tire suggestions

    Been reading a good bit but havent Noticed much tire talk going on. Looking at several options but right now my '91 2wd has dry rotten 275/60/15 toyo proxes. Seems to be a decent size. It has 2" lowering shackles in the rear with caltracs and stock front suspension. My buddy couldn't remember...
  25. RDF1

    Hard to find Parts for C1500

    Hey Guys, Newbie here. Im working on a 5.3 swap in a 1991 C1500 and am having a heck of a time finding some small parts. I got the truck for free but the interior was trashed so i gutted it and starting over. Under the hood im going to use a 4.3 Radiator but i can not find the radiator...
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