Put a different th400 (rebuilt) in my car. Now after it sitsfor short while, the torque conv must drain back?? cuz the fluid level is about 4 inches overfull and then when i start it up, it slips terrible unless I leave it idle for a minute or so.
Fluid level is correct, the tranny shifts, acts, performs as should otherwise. Any suggestions on remedy??
OH I did put a small stall converter in
Thanks in advance.
rick