He was using my brand new torque wrench, proper setting at 35 ft/lbs. Stud looks like it might have had a stress fracture already......hard to tell. Drifted the old one out of the flange, and I picked up a grade 8 Metric 8mm bolt and nut for him. The flange would have been a PITA to replace, and it was $60. The bolts cost $0.48 ! I left the parts on his porch when I left for work tonight, so I assume it'* done, and he'* back on the road!
Not bad for a 16-year-old who'* done next to nothing on cars before. Not bad at all. Of course, he had excellent technical advice from his step-dad and an awesome neighbor with a really fast Bonneville.