Breaking wheel studs
Thought I would ask the collective for help. I have now had 3 lug nut wheel studs break. Rig is a 34ft, 14,400 GVWR with 16 inch 8 lug aluminum wheels, studs are 9/16"dia. Studs have broken only on...
Forum Discussion
It sounds like one of three possible things:
1. Your torque wrench is out of calibration, and 120 lb-ft of torque is actually significantly higher. In my manufacturing days, we would have every torque wrench calibrated every six months. It was not uncommon for them to be significantly out of calibration.
2. The specified torque is too high. I'd get the lug nut/stud size and see if there are some charts that specify torque. Your local tire shop may have the specs.
3. The studs have a manufacturing defect and all of them should be replaced.
1. Your torque wrench is out of calibration, and 120 lb-ft of torque is actually significantly higher. In my manufacturing days, we would have every torque wrench calibrated every six months. It was not uncommon for them to be significantly out of calibration.
2. The specified torque is too high. I'd get the lug nut/stud size and see if there are some charts that specify torque. Your local tire shop may have the specs.
3. The studs have a manufacturing defect and all of them should be replaced.
