push button 727 trans cooler ?

[rustytoolss]

on a 1962 push button 727 which line sends the fluid to the radiator cooler. I'm installing an aftermarket cooler as well. Want to get the flow correct. Thanks

 

[Dave6T4]

The line near the front of the trans sends the fluid to the cooler. The line that goes in the rear of the case is the return line.