icanfixall
Official GMM hand model
Good news on what you found but.. The big question is why this has happened twice on the same rocker bolt. Did the tap show any material when you cleaned up the threads. Might has been a good idea to have used some blue loctite on that rocker bolt. Its a 5/16 bolt and the torque is 27 lbs I think... I could be of on the torque.. Don't have my shop manual to refer to. Both of them are loaned out...