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  1. GTX63

    pinion yoke

    Well, my best friend went to school and became a top line mechanic for a Cadillac dealership. I pulled apart old 283s in my garage after school and learned almost every lesson I know by screwing crap up. Both forms of education cost about the same money. Just an FYI, today my friend and I are...
  2. GTX63

    pinion yoke

    Ok, the first picture you can see the pin at the top of the spring arch. The second picture, disregard that the springs are flipped, just note the hole in the middle of the spring perch. That is where your leaf should be seated. If there is any sort of gap between the two, it isn't. If it is...
  3. GTX63

    pinion yoke

    How do you know the rear axle assembly is misaligned? There is a small dowel or centering pin located on the bottom of the leaf springs where the axle tube is bolted to the perch. If it is not centered and in the hole, you will see a gap between the perch and the bottom of the spring. Usually...
  4. GTX63

    Ever dealt with GM crate motor warranty replacement?

    In my opinion, their answer will be "No". They won't care whether the motor was gently used or redlining to work every morning. The warranty is their protector and it is almost 6 years past the warranty. The first thing you should do is have someone knowledgable diagnose the issue. You may have...
  5. GTX63

    76 K10 rear main seal

    If your truck has the original motor, or, if the motor is pre 1986, then it will have a two piece rear main seal. Dropping the oil pan, the pump and the rear main cap to replace the seal is, IMO, something that can be done by someone with a moderate set of tools and common sense.
  6. GTX63

    Hot wire junction block

    Every squarebody truck had one new, lol. I just trailered another one home a few weeks ago without one, probably missing who knows, 2 owners, 7 owners back. Some people just think electrical tape is a better junction I guess.
  7. GTX63

    Front Drum to Disc Conversion

    Squarebody trucks have a lot of great upgrades that are just about bolt ins for the 67-72 trucks.
  8. GTX63

    74 k10 going 55 mph is at 3,500 rpm

    With the discription you gave, your truck is about 1200rpm too high with that set up at that speed.
  9. GTX63

    LMC Parts

    Pretty sure Carparts.com has squarebody rear repair panels on sale right now for about $70 with free shipping.
  10. GTX63

    Air compressor for painting my project

    A HPLV gun is suitable for smaller 110v compressors. You can buy throwaway versions from Harbor freight or nicer versions for more money. I paint with a 30 gallon tank and have another 25 gallon backup. The thing is that the compressor motor is going to heat up from the run time to fill both...
  11. GTX63

    Water leaking from under dash near the brake pedal.

    Could be one or both, or neither. Start by removing the black plastic cover at the top of your second picture. It runs between and beneath the wiper blades and is known to collect debris over time and hold moisture. I recently had a 74 C10 I had to clean out first by removing handfuls of leaves...
  12. GTX63

    Rear end advice

    Speaking as someone who worked on these trucks back when they were still being sold new, I never, repeat, never saw an axle come out of a reasonably driven and maintained squarebody. I have driven K10s with no bearing at all and the c clip did it's job. The 10 bolt and 12 bolt semi floating...
  13. GTX63

    Headlights quit working

    Has anyone mentioned grounds yet? Using a test light, follow your ground wire from the lights, (both headlight and signal) back. I'm pretty sure you will find the issue under the hood. If you powder coated the motor, run an external ground from the back of your alternator to the frame. There is...
  14. GTX63

    Tune up, than banging sound?

    Yes, without video/audio, everyone is just throwing darts. Things like rotten mufflers and leaky pipes complicate things. It's like a doctor checking your heartbeat while the baby is crying. Replace what makes more noise than is supposed to. Square one, start the motor with the hood open and...
  15. GTX63

    82 k1500 lost all forward gears no warning signs at all

    4 neutrals and burnt fluid usually points to toasty clutchpacks and/or a failed pump. Can it be something minor? Possible but after about 10 minutes of checking, unlikely. Regarding some of the other issues, 40 year old trucks live in the land of deferred maintenance, rusty grounds and amateur...
  16. GTX63

    I finally realized why I like working on my '81 C10 so much

    My 2019 2500 Silverado can be driven on the interstate with one thumb in the 6 o'clock position. Every SB I have owned required two hands. My 2500 is quiet to the point that I feel isolated in the cabin . I have driven then 8 hours back when they were still in production as well as today. Other...
  17. GTX63

    I finally realized why I like working on my '81 C10 so much

    I had a late model Silverado 2500 that I put almost 300k on the motor before selling it. I could go months before lifting the hood to put washer fluid in the tank. I won't get that out of any squarebody gen 1 small block. But I also won't be dependent on scan tools, my ability to guess which non...
  18. GTX63

    Light white smoke and backfire at high RPM or under load

    A gummed up valve train, rotten oil seals, stuck piston rings, a rat's nest in the muffler, loose rust and carbon in the exhaust. A gen 1 motor that has sat since 2005 needs a little time to wake up from a nap that long. Yes, Mystery oil, berrymens B12 in the fuel system, Lucas Oil Treatment...
  19. GTX63

    Smoke troubleshooting

    It looks white but pictures aren't always as good as being there. It is common to see white smoke from condensation from a cold start, especially in cool temps. How is the engine running? Is the temp gauge showing that the engine is running hot? Is the oil discolored? Stick your head in the...
  20. GTX63

    Better illumination of gauge cluster possible?

    I bought some leds off ebay or amazon. I bought multiple packs for each truck as I start tearing into dashes. Most of them do not dim, so there is that. All of the ones I have used "Superbrite" might be the brand, have worked well. The factory lights are akin to holding a bic lighter next to the...
  21. GTX63

    10W-40 for Chevy 350

    Chevy valve stem seals don't cost much more than a jug of heavy oil. A cheap valve spring compressor and some rope and you can change the seals out in an afternoon without a compressor.
  22. GTX63

    Sbc dumping oil

    Near the back of the motor, the most likely culprits are the oil pressure sending unit/line, the oil filter, and the rear main seal.
  23. GTX63

    @AuroraGirl is back!

    Besides, most prisons have fiber optic these days and a hookup for each cell. That's how most of us are able to post anyways.
  24. GTX63

    Exhaust single to dual on a tight budget - Then we get into some after issues

    I've installed 3 or 4 of the Dynomax systems, usually the 89003s. Yes, they are way cheaper than OEM or custom bent pipes. I have seen prices vary from $140 to almost $300 for basically the same kit, depending on who the seller is. I believe they manufacture them for the long beds and you either...
  25. GTX63

    Engine Rebuild Kit Recommendations

    I noticed in your OP you didn't mention price. Good for you. Rather than tout one or two companies, folks behind me will do that, I'll mention where not to buy a kit-ebay. Lots of buyers are finding out that Chinese rebuild kits made with eyeball micrometers are nothing more than junk. Motors...

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