Good morning I have a remote small trans cooler located behind Jeep just forward of rear axel with a puller fan. No room up front RIPP supercharger cooler. Have 5:38 gears and automatic transmission after awhile on the road trans temp get 200 + on steep hill going up to almost 250 had to shut her down. Was thinking of installing Derale oil cooler 15870, and putting new filter and synthetic in her. However I thought I would ask for opinions from others that been down this road. Thanks for the help and I look forward to hearing what is said about the subject.

 

I have a B&M cooler behind my RIPP and in between the radiator.
Here is San Diego leaving the city going east it is a climb from sea level to 4000ft in about 40 miles, it a 3rd gear pull most of the way and my trans temps get to 200*. My normal temps are in the 140-150 range.
If you do mount it under the body add an electric fan to it, that should help a lot.