I've yet to see one of these cars eat rear tires(first hand) and I don't rotate tires very often. I'm really surprised to not see at least one or two...
So I got this back inside. Swapped the valve body out. Haven't filled it back up yet. I'm fingering the vibration in reverse is caused by the dogbone...
The rotor isn't bolted on. They rust in place. There should be one or two threaded holes that you can thread a bolt into to help press the rotor off....