I did not label the cooler lines (real smart) prior to switching motors and transmission in my 67 Cutlass. Does the lower coolant line at the transmission go to the lower or upper coolant fitting at the radiator ? This is a TH 400 trans. Thanks.

 

Bottom fitting of trans to bottom of radiator and top of trans to top of radiator.

 

Inlet to the radiator is the bottom line and goes to the lower end of the oil cooler in the radiator.

 

Thanks again.