Hey look at JASPER tranny when you rebuild. My dad PSD auto went out at 50k, second went out at 85k. Mine went out at 100k, put a JASPER in it instead of a standard rebuild. Seriously beefed. Jasper is what the ambulances, service trucks run. Mine cost $2250 and comes with a 3 year 50k warranty.

http://www.jasperengines.com/