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
RustyJC wrote:
120 PSIG was the correct torque for our previous 5th wheel that had aluminum wheels and 9/16' studs. Typically, if studs are breaking as you describe, they have been overtorqued at some time in their life, either with an impact wrench, an out-of-calibration torque wrench or a breaker bar.
Rusty
Whoops...you mean 120 lb-ft for the torque. You need to go ahead and retire Rusty.
And Dutchman Sport, you need to get a torque wrench and check your wheel lugs. With my aluminum rims, it takes three retorques to get the lug nuts to stay tight.
All it takes is one over torque to possibly take the lug bolt beyond its yield strength and the bolt is set to fail at any time.
Ken
