My Father just picked up a 1970.5 Z-28. The TH-400 will not shift from first to second until the engine reaches 7200RPM. He wants the trans to shift @ 6200rpm. This happens whether he manually shifts or leaves it in Drive. How do you adjust the shift point on this Trans. He is fearfull that he is going to grenade the motor!
Thanks for your help,
Dan
Thanks for your help,
Dan