Can wheels studs be permanently damaged from over torquing the lug nuts?

[tallboy]

Got my car back from ford after some warranty work (that they didn't do properly) and they overtorqued the piss out of every lug on my car. A second ford dealership loosened the rear lugs for men and I re-torqued to the factory 150ft-lbs. The fronts will not budge with an impact wrench or tire iron. I plan on going by ford again tomorrow to get the fronts loosened so I can tighten down to spec. This got me wondering about permanent damage to the lugs though. Can over torquing cause permanent damage?

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[Olivas]

Yeah you can snap the stud from over torquing.

 

[jasonstang]

You can stretch the lugs making them very easy to break.

 

[Kclyatt]

Don't forget the lug nuts will probably be damaged too

 

[Rick@LASTREETCARS]

I would ask to see the lugs and studs while at the dealership when they remove them and take pictures. They have likely binded them, not coated them at all, etc...and that will make the studs and lugs weaker too.

Most of the time, dealers don't actually torque them because of the extra time and they just go all out with the air gun...

 

[tsloms]

I would ask to see the lugs and studs while at the dealership when they remove them and take pictures. They have likely binded them, not coated them at all, etc...and that will make the studs and lugs weaker too.

Most of the time, dealers don't actually torque them because of the extra time and they just go all out with the air gun...

They should be using torque sticks though which will be fine. When I worked at an alignment shop years ago all we used were torque sticks including the lug nuts on semi trucks. We just used a 1" impact to tighten them with the sticks.

 

[Rick@LASTREETCARS]

They should be using torque sticks though which will be fine. When I worked at an alignment shop years ago all we used were torque sticks including the lug nuts on semi trucks. We just used a 1" impact to tighten them with the sticks.

No issue on what they SHOULD be using...I've been in the business for 30+ years..and always torque properly. Not everyone does, and sometimes policies are not followed...especially noted at some dealerships.

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