Stop in for a cup of coffee

Ddaddy said
This pic tells me everything.

The outer band indicates that the stud was over-torqued at some point causing a circumferential fracture that is evidenced by the corrosssion in the outer band.

The inner “clean metal” core was then torqued to the level indicated for the entire diameter stud...but being only half that size with diameter reduced by the previous fracture, it was also way over torqued for its true diameter resulting in sudden catastrophic failure.

View attachment 1715412913

I most likely need to replace all my studs on my Dart. When I got new tires, the guy torqued them to 55 foot pounds, but when the wrench clicked he did not stop. Some of them I think he continued like 30-60 degrees extra. What is the point of a torque wrench then. It was a huge torque wrench, at least 3 feet long, maybe more. Like for a truck with a lot bigger studs.

Bill