4l60e hd built for ls6
i have a 57 chevy with 2002 ls6 and a recently built 4l60e (beefed up) and i cannot figure out why it will not shift correctly. It has new painless wiring harness and fluids are all fine. My tuner has looked at it for a week and he doesnt know whats going on. All wiring hooked up correctly. it does not go past 10 mph when given gas and i dio not want to ruin this trans (very expensive). please help if you can..............Jerry





