"making the holes in the wheel hub oblong causing excessive vibration, then trashing the wheel hub"

This is what I wondered about. I guess I will need to give it a thorough inspection.










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There are also studs on the brake drum to help transfer load from the wheel hub to the brake drum. If the lug bolts are loose and things start moving, you will ruin the studs. Then you need to press in new studs. Make sure yours are still nice and round. Good luck, pics help.