Does anyone know, with certainty, which line is pressure and which line is return on the transmission case itself? Thanks.

 

The bottom line is the feed line, the top the return.

 

Yup, what he said. Last week I installed a tranny cooler myself, and this is what my tranny builder told me.

 

just so i have this correctly. the top line on the radiator is the return and the bottom in the feed? On the radiator? I just want to make sure, because i will be installing a b&m cooler and wish to run it from the return line off the radiator cooler to the b&m then back to the transmission return line.