I have a 727 foward manual valve body with low band apply. It was working fine for a few hundred miles.
I parked it and went to back up and the car wouldn't move. All forward gears work fine. I ran the car on jackstands. Forward gears fine. In reverse the tires won't move and it pulls the motor down when I give it slight throttle.
Any Idea what might be the problem? Is it the valve body or something bigger? I am thinking something left loose in the modified valve body causing it to work like a trans brake.
Any ideas would be appreciated.
Thanks,