shifting problem

  1. WhosCacti

    New GMC Owner with shifting troubles

    Hello squarebody community! I'm new to the world of 80s tech/ vehicles, but I'm eager to learn the workings! I've been working on my 1981 GMC G3500 5.7L V8 for about 8 or 9 months. Over the winter I had it stationary and parked so it hasn't been engaged with or running for a while. The past...
    • WhosCacti
    • Thread
    • automatic transmission shifting problem transmission
    • Replies: 38
    • Forum: Introduction
  2. G

    1977 K10 Scottsdale Transmission wont shift

    I just got my Brother Michael's 1977 K10 Scottsdale. Total Rebuild. Engine Starts, Runs and Drives Forward and reverse. High and Low transfer works fine. Transmission does not shift gears. It was working before the rebuild and checking for a Diagnostics solution if a connection could be the...
  3. Spookee

    1984 k10 700r4 won't shift out of 2nd please help!

    Hi! We recently bought a 1984 chevy k10 with a 700R4 transmission. it sat for about 14 months before we bought it, so we are chipping away at getting work done on it. It has been our daily driver truck but now is having a shifting problem that we can't figure out! This forum has a lot of great...
  4. N

    700r4 quick, stacked shifting

    I have a 84k10 305, 700r4, holley600 carb. I've been having problems with shifting, 1-2 around 7 mph 2-3 around 12mph and 3-4 then immediately over drive around 17mph. We've replaced the TV cable, the throttle/TV bracket, and added a geometry bracket onto the carburetor, nothing has helped...
  5. OuchMyToe

    Something strange is afoot with my 700R4...

    Background story: I have a 1985 C10 Scottsdale P/U that I just finished equipping with a 400 SBC from a 1975 (or 76?) Caprice Classic Convertable. The original 305 hydro-locked after...yadda, yadda, yadda...long embarrassing story. Anyway, while putting in the 400 (it's a SBC; how hard could it...

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