4 speed ka-booom !

well like I said, I am running semi-synthetic 80/90 gear lube, valvoline durablend. and the trans. has the Liberty pro shift kit-no brass rings. and the 8 3/4 has a spool, mcleod long plate, 30# flywheel, 3000# car, 450 hp, for 20 years with 11" wide tire. learn to not drive like a gorilla