Transmission cooler line connections from transmission to radiator

Hello everyone. This is a crazy question but I have a 72 Dart that I’m restoring and forgot where the transmission lines go to the radiator. It’s a 727 torque flight. They are braided so they look the same. I forgot to mark them. Any help would be appreciated. Thanks

Either way will work without an external cooler.

I actually plumbed two ball valves in line, so the fluid only flows through the radiator to gain heat for shorter trips, and they can be lined to only flow through a pair of plate coolers when I am drag racing. That's about the only time my transmission temperature starts to climb above 180*. The rest of the time it barely gets over 150* going through the radiator alone.