bizzare stuff...

i guess ur wheels still rotate freely? no bearing failures etc? must have been a serious lockup to shatter the modded cups instead of just locking the wheels up. is ur diff ok? if a tooth broke in there and locked that up... or like censpares said, a dogbone trying to escape... hard to say, damn shame tho, im sure hope u wup that tmaxx for makin u break ur truck!

very strange one mate, let us know what u find, there must be some evidence there somewhere. are u replacing the dogbones with cvs? they stay in place a bit better...