TCI 904 Sizzler ?????

I ran a TCI circle-track 700r4 trans behind a GM circle track 350 400hp crate engine with 4:10 gears and a spool, it would stay right below the redline all the way around the dirt track, we ran that setup for 2 full seasons (40 races), fell 10 points short of 1st place in season 2 and never had a single problem with the transmission. Just sayin.