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  1. M

    Need help settling a debate

    So I'm driving my plow truck, notice my brakes are weak as f, then driving up hill it starts backfiring like crazy, almost didn't make it. Unfortunately I'm working with my father on this project. So I figured the brake booster went to crap and it caused a massive vaccum leak, like diaphragm...
  2. M

    Am i calibrating this starter right?

    Hey all, I swapped a motorhome 454 with my sbc 400. I've used the calibration rod that came with said starter, also used a 1/8th Allen . It seems to turn good, then at times does a clunk and stops. Batteries are full power, 2 batteries in underhood. I'm including pics of the tool between bendix...
  3. M

    What in the f is this bracket for??

    I'm swapping engine and transmission, pulled my transfer case to clean and paint. I'm looking for hour on Google with image search, cuz this bracket showed up in my pile of parts. At this point I'm hoping someone was ******* with me, cuz I don't know what it is or where it goes. So any advice
  4. M

    Hey th350 questions please

    Hey yall so I just bought a new transmission, since it's cheaper than getting it rebuilt. The years say 69 to 79. My trucks a 1/2 ton 76, np203 transfer case. I just dropped a 454 out of a 83 motorhome. I'm pretty sure they fit, but double checking on here with yall more experienced guys.
  5. M

    Transmission line locations

    Hey all. So I'm hooking up my th350 lines 76 gmc. I see some that hook right into the radiator and the other circulates through the cooler in front of radiator. I included 2 pics. I'm curious which one yall think I should go with. I just dropped a 454 in it and getting the th350 rebuilt. I'm...
  6. M

    Stress cracking on transmission case, is it rebuildable?

    So I got cracking on my transmission, looks like desert floor. It gets worse closer to the transfer case end. I was gonna get it rebuilt, now I'm thinking of buying a new or refurbished etc. So is it rebuildable or should I go with a new one? Is the cracking normal if not what caused it??? I'm...
  7. M

    Th350 or th400? Help please

    Hey yall I have a 1976 gmc 1/2 4x4. I'm swapping my 400sbc with a 454 bbc, my transmission started slipping. It originally has the th350. So I'm considering whether to get another 350 or get a th400. So pros and cons? Will the th400 slip right into the place of the th350? Will the th350 hold up...
  8. M

    Do all stock engines in a motorhome have a rv cam?

    1983 pace arrow 454 gen 4, putting in my squarebody. So curious if it's got a rv cam, guessing so since it's out of a rv.
  9. M

    Looking at buying a 1985 wrangler?

    Never heard of a chevy wrangler, only that it's Canadian. Is the 6.2 diesel engine any good? I'm guessing it's not, probably the ones built for fuel economy. Anyway any info on the quality of engine or truck itself or opinions you'd be appreciated. I included a Pic of the ad itself.
  10. M

    Replacing a 400 small block for a 454 long block

    Hey yall. So my 1976 1/2 serria grande 4x4 currently has a sb 400 with 350 transmission. Engines original, but getting tired, my dad has a 1983 30ft pace arrow, 454 with 50k miles on it. I want to swap, so I'm guessing i might need a flex plate conversion and possibly a bigger radiator or...
  11. M

    76 gmc maximum tire size

    I imagine yall have answered this before, but I have a halfton 76 gmc truck, 15 ralleye wheels, putting a spring assist in the rear for hauling firewood. It's my all around truck I also plow snow with it, wondering what's the maximum tire size, I'm guessing the 33,12.5,15. But would like that...

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