[KTL]

Are you saying your rear axle is unable to rotate? Is it because of the parking brake or something else?

Sometimes you can muscle the rotor off of the parking brake shoes without retracting the shoes via the start wheel and not do much damage to the backing plate that the shoes are mounted to. But i'd only do that as a last resort. If the parking brake is stuck, it's usually because of the cable. Try freeing the cable by disconnecting it from the handle assembly inside the car and that can allow some slack in the cable. Once the cable is slacked, you can yank on it near the brake assembly and get it to free itself.