Share This Story, Choose Your Platform! By Calvin | December 13, 2012 Bad rotor? Caliper alignment issues? Pothole? This gallery comes from Reddit’s Just Rolled Into The Shop. I have never seen a rotor crack like this! This Toyota Tundra was in need of abutment clips and guide pins! It is clear that the drive choose to ignore the rear brakes a long time ago. This rotor is way below discard specifications!