Stupid Question: TF999 Oil Cooler Routing

Jay5.9L

...I just filled the cup.
Location
Riverton
Installing a secondary transmission cooler on my CJ7 with the factory 6 cylinder automatic (TF999 I believe). Which is the supply line and which is the return? Could not find a good diagram online. I assume I plumb from the radiator to the top of the cooler then back to the trans.

Thanks!
 
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