Cooler line size

stroker416 said

Why not run an external trans cooler with the proper sized -AN hoses and fittings and adapt at the trans fittings?

Ive done on a few non-Mopar transmission swaps on the past using some of the oil/trans fluid coolers available at Summit Racing. You can also get -AN adapters for the ports on the transmission.

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I do plan on an aftermarket cooler for sure but I have cooked every trans I have used an external one as a standalone without also using the in radiator version along with it. I used trans coolers rated at something like 14k lb RV in cars such as late b bodies , and a D150 / and if I didn't also use the radiator cooler, the trans smoked.
And I'm not running hoses. Im running metal tube.