Truck is a 2002 F-350 7.3L Stage 2 AFE Cold Air Intake, DP Tuner with 80hp Econo/120hp Performacne Tunes, BD turbothruster II turbo, MBRP 4in Dual exhaust (cool duals)
So I recently had my stock tranny go at 204k. Took it to AMCO and had them rebuild it with a little bit beefier parts, but not upgrading the performance. I have noticed that after I bought the truck, put a tuner/turbo/intake/exhaust/gauges on it that the transmission runs pretty hot when towing very minimal weight (

 

Sorry for some reason its only posting part of what I type. Tranny runs at 200* on the highway even when not towing. derale aux cooler doesn't seem to be working. Any ideas on why this is happening and how to make it stop?

 

6.0 or V10 tranny cooler is the best to upgrade too. I would also recommend switching tuners.

 

Ya I've heard good things about the 6.0 coolers. Why do you say switch tuners? And do you have a recommendation of what to switch to?

 

The 80E tune from DP is responsible for a ton of engine failures. I would recommend the hydra, it comes with tunes from PHP or you can load tunes on it from any other tuner.