i have 30k on my brians truck shop tranny now and couldn't be happier. im running an 01 f350 with a 7.3, i drive the truck in the 120hp setting with my dp tuner chip. im running 33's with a detriot locker and it barks the tires when i hit second gear! the truck makes 30lbs of boost, im also running a big h2e holstet turbo...the thing is a beast. i thought 4k for a tranny was a chitload of cash but not when compared to 2800 the local tranny shops wanted to rebuild mine with oem parts. brian only uses the factory case and builds his own pump,converter and all the weak oem parts are replaced with chrome moly replacements! give him a shot when your tranny pukes like stecz after drinking blow job shooters