wes, the reason i bring it up is i found something a bit weird last night. i race at socal (with wood barriers and concrete retaining wall). when i launch my car off a metal dot into one of those lovely concrete walls.. the car naturally gets tweaked. well.. i always take off my pinion and spin the drive train. i noticed that after a major crash, the motor mount moves every so slightly and binds up the bearing that holds the rear input shaft.

i took off the screws that hold the upper deck into the motor mount and they dont line up correctly. so i always check for tweak now (after every run) and make sure the drivetrain spins freely AND check the motor mount also.

i also took a reamer and made the holes a TAD bit bigger for the motor mount screws.