hey derek, i am very curious as to the cause, i dont think the od was involved, i do have a bad lockout switch but im very mindful of disengaging when i down shift. the reverse issue has always been there, as soon as i accelerate in reverse it makes a horible slam that seems to shudder though the whole drivetrain as it pops out of gear. this is the only other issue i've had, im baffled that I couldnt hear or feel any of this destruction taking place.