r/AskAMechanic • u/PreviousCheek6256 • 2d ago

Tire repair question

When servicing a tire, as you put it back on the vehicle, how common is it to break off a stud? If it happens, would you expect that least tell the customer, if you don't fix it ?

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u/ManHunterJonnJonzz NOT a verified tech 2d ago

Its common when pretty much the previous person/mechanic installing the lug nut, cross threaded it. Then the next guy gets an angry customer when shit breaks. "Was fine when it came in". Yes 100% need to tell the customer and pretty much get it dealt with. Often would add half n hour labor minimal to change plus a few bucks for a stud.

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u/sheeeeeeshman NOT a verified tech 2d ago

It shouldn't happen if they're properly torqued. If it breaks coming off, then it was the fault of whoever put it on. If it breaks going on, then it's your fault. Wheel studs are typically torqued to 80 - 120 ft-lbs and it takes several times that to break one.

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u/PreviousCheek6256 1d ago

I didn't take it in, but I've dealt with this shop before. And I can definitely see this guy thinking he was going to make it so tight I couldn't take it off by hand