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  1. R

    Updates

    So i got my 97 silverado 5.0 1500 running on this 96 silverado 5.7 1500 engine harness. But the transmission wont shift out of park when its running. i dont have 1st, 4th or torque lockup. And i have to maualy alternate between 2nd and 3rd because it wont upshift or downshift on its own. Anybody...
  2. R

    Anyone with with experience or AllData please help

    So im trying to put a 96 silverado 5.7 vortec harness on my 97 silverado 5.0 vortec and i ran into some issues at the c100..on my original bulkhead E1 is a small purple wire, im assuming crank fuse output?? Well on the 96 harness E1 is a big yellow wire. Anyone got diagrams for both years? Or...
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