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  1. L

    Should I swap a 383?

    I have a Smeding Hot Rod 383 in my '94 RCLB K1500. It was dyno'd by Smeding at 425 hp / 475 lb-ft and moves the old gal very nicely with 3.73's and a Detroit Truetrac diff. Transmission is a 4L60E built by PerformaBuilt Transmissions and I'm running a FTI convertor (2300 stall if I remember...
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    1994 k1500 383 tbi

    I agree with J1985. You'll be time and money ahead by using a Holley Sniper with that much engine. Yes, you'll have to pull the bed or drop the tank and change your fuel pump for more pressure and do a little wiring but well worth it. The Sniper 2 is out now and you will eventually be able to...
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    Hydro boost set-up needed

    you'll need a brake pedal from a HB donor truck as the distance from the pivot to the push rod is different between vacuum and HB models. It's a direct swap otherwise. I actually have a spare HB pedal but am keeping it in the event I ever build another GMT400. I have a '94 K1500 and did the...
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    Someone talk me out of ditching my TBI setup

    I’m running Sniper and Hyperspark setup. If I could do it over I would go Teminator X Max. ECU goes in the cab away from heat and vibration and can control transmission.
  5. L

    The "correct" way to remove leaf spring bushings.

    I’d be more inclined to change the spring out for new if the bushings were that far gone and it was a truck I cared about and planned to keep around for awhile.
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    Leaf springs

    It’s up to you and what your goals are for the truck. Best ride and performance is going to be stock. I can’t overemphasize that. If you’re looking for lift and don’t need the load capacity then go with high arch springs in the rear. Sounds like you already have some sort of lift kit up front...
  7. L

    NOS Timken Wheel Hub Assemblies

    Nice find! That’s probably worth having spares on hand!
  8. L

    Leaf springs

    It’s likely up to the individual and the operating environment of the truck. Before rebuilding my suspension back to stock I had add-a-leaf and it increased the height at the rear by around 2.5”. It also rode like crap on the many dirt roads and off roads I run. I put them in for firewood...
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    Leaf springs

    Go to a local spring shop or you’ll spend half as much in shipping as the springs cost. Personally I recommend going with stock number and size of leafs unless you like your headlights aiming at the ground and the ride quality of a lumber wagon. I also recommend replacing the rear shackles...
  10. L

    All too common LS swap vs unique old school small block

    I don’t understand all the dislike for SBC. The LS transplant requires a lot more modifications to complete including your AC and PS hoses whereas you can bolt in a 383 and Sniper (or EFI of your choice) with fairly simple wiring and a new fuel pump and make more power than a even a 6.0 or stock...
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    TBI timing

    Why wouldn’t you top off the tank with fresh gas, set timing with EST disconnected and then go from there? That would be the proper procedure rather than chasing your tail. Set it at 0 degrees with the black/tan wire under the glove box disconnected. Reconnect it after setting 0 degrees and...
  12. L

    Front Lower Control Arms

    Thanks again. You pioneered the way and your work and updates will undoubtedly help many others. I vote for making this a sticky!!!!!!
  13. L

    Desperately need advice on rear ends.

    Not exactly the same situation as you but I changed my K1500 from 3.42 to 3.73. Front differential was a simple bolt in swap when I found a 3.73. I bought a rebuilt axle with open diff and 3.73 gears for cheap and put in a Detroit True Trac and never looked back. That would be a great diff for...
  14. L

    Front Lower Control Arms

    What brand two arm puller did you use to get the torsion bars removed? That puller fits like a glove! thanks for posting your project. You give me inspiration to finally do mine. I was dreading having to rebuild old nasty LCA’s but seeing as there are new Moog arms available I will also go that...
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    Long tubes

    Completely false statement. I have a pair of JBA 6830SJS long tubes on my '94 K1500. I had to tweak the transmission shift linkage with a small bend to provide adequate clearance but they are otherwise a breeze to install. Yes, you will need to fab a new exhuast system so if you're looking...
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    Fog lam switch/wiring

    I’d recommend reaching out to 5vortec7 and order a HD headlight harness from him with fog lamp circuit. I’d imagine those big dogs are best run off the battery using a relay and a switch in the cab. Plus with his setup you’ll also have the headlights pulling off the battery with relays and the...
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    Issues with leaking

    If it’s a 4L60E the dipstick has a hat shaped grommet that goes in the case. The dipstick is held in place with a double ended bell housing bolt that is real fun to get to… Make sure your not leaking somewhere else like the case connector for the electrical connection. Sometimes it’s deceiving...
  18. L

    TOTM questions and coments thread

    just found this thread a little late to enter my K1500. Bummer! I like seeing everyone's trucks and projects however. Speaking of, maybe you need a 'best work in progress' category one month!
  19. L

    wiper arm upgrade

    Thanks for the feedback. Sounds like a great swap. I never did like how high the wiper arms sit on the glass on my '94.
  20. L

    wiper arm upgrade

    What’s different and what is the advantage or benefit?
  21. L

    Arteb Brazil GMT400 headlight users thread

    Thanks for the detailed info. I’m really looking forward to installing them and trying them out. I’m working through some issues with a HD headlight harness but the seller gave me something to check. Unfortunately I had to button up my truck rebuild to get it ready for custom exhaust so I tore...
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    '96 GMC 1500: need suggestions for routing HD headlight wrg. harness + 4Hi wiring in rad area...

    Hi DennisT I got my harness from 5vortec7 and he replied to me on another thread that it designed for the relay box to mount on driver side and power wire runs across firewall to power distribution block on passenger side. He did indicate that you could mount it close to battery and run the...
  23. L

    HD Headlight Harnesses w/ 4 High Mod

    Thank you!! I’ll look at the firewall option tonight. I appreciate the fast reply.
  24. L

    HD Headlight Harnesses w/ 4 High Mod

    Hello all. I purchased a HD headlight harness a year ago and am just getting around to installing it after a pretty major overhaul of my ‘94. Question on the power wire. I was planning on mounting the relay box on driver side fender and running the harness in parallel with the stock harness...
  25. L

    '96 GMC 1500: need suggestions for routing HD headlight wrg. harness + 4Hi wiring in rad area...

    Apparently we’re both in a parallel world as I’m doing exactly the same thing. I assume you mean the HD harness one of the forum members sells. I’m installing on a ‘94 and battery is on passenger side. I assume that’s the same on a ‘96. It never even occurred to me that you could probably run...

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