...quite obviously a dead porcupine stuck in a wheel well
...possibly your trans is falling out
...perhaps the rear diff is pooched
um, no, eh?
more info would help. is noise when susp is in compression. or rebound? when braking, cornering or when? have you had any , aaah "incidents" recently that would explain somethng getting bent? etc
make sure it's not something simple like a plastic wheel well liner piece rubbing