Question reguarding turbo 350 trans cooler hookup

[rat-on]

I'm installing an external trans cooler behind the radiator and I need to know the ATF direction of flow. On the cooler line fittings screwed into the side of the tranny, which fitting is supply and return. There is an upper fitting and a lower fitting. My Rat does not run yet to find out. Thanks.

 

[rat-on]

Okay for those wondering, all GM auto's except the TH200C and 200R4 trans have the return on top and supply on the bottom. I found my answer after some deep searching on the internet on the TCI site. They list the supply and return ports for all popular GM, Ford, and Chrysler RWD autos. [cl

 

[Daman]

As long as it makes a loop all is good