this is kinda late but i would look for a 47rh trans. gut it out and keep the pump, stator, and valve body and THROW the rest of it away. Now get a 48re and gut that and keep the internals to swap into the 47rh case. Do a transgo shift kit, billet twin disc torque converter, along with a good kevlar clutch power pack kit and your good to go. i did this in my dakota but i run a 46re with 48re internals for my turbo charged 408ci 4x4 dakota never had a problem yet