on Monday, i was driving my 86 and all of a sudden i heard a POP and subsequent thumps.... at first i thought i blew a tire but it wasn't that. its coming from the drivers rear. brakes look ok, although they will need to be done soon, i cant seem to figure it out. i THINK i may have broke an axle, but i am not sure.... i REALLY need to fix this as iam now down to 1 car for 2 drivers. any ideas???