Hey fellas, So the cars on the hoist,rear springs are out, rear wheels have wen removed and disc have been re secured by bolting another disc on backwards, tried replacing rear bearings, I've now got the rear lower control arms ratchet strapped at the same height they would be if the car was on the ground. Run the car up to 100km/hr to the speed where the car gets a vibration. I've ruled it out to vibrating from either the tailshaft or the cv's. Will it hurt the diff if I pull the cv's out and spin it up to "100km/hr" with no axles in? Only way I can think of proving it's not the cv's