Third gen Ram 3500 trans cooler line direction

[Ram06_1500]

Which line is the supply and which is the return for cooler? I’m in process of doing 46re swap and old lines are gone and putting on aftermarket hoses. Thank you

 

[HemiLonestar]

That picture looks VERY familiar lol.......



Lower line is return.

 

[Dan98]

The check valve line is hot feed it returns in rear of transmission in to the overdrive unit.
So front line close to bel housing is out rear tail housing in

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[Dan98]

http://www.transmissiontuner.com/68RFE-Swap.html
Maybe check this out if you haven't already

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