Jeez, how did I miss this thread?
Quote:
Originally Posted by Tcoat
Not like you can over torque them really.
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I have to pile on here. You
can overtorque them, which can stretch the studs, which then makes it difficult to get them tightened again, which leads to additional overtightening, which eventually causes failure. It's not like you have to carry a torque wrench in the car with you, but it's really a basic part of the tool kit that ought to be in the garage. I have replacement axles for my Jeep, and one of them has some stretched lugs on it that I'll have to replace before I'll feel comfortable using it, the result of someone getting overzealous with a wrench.
Furthermore, overtightening can make it a bitch to get the nuts off some cars. I had to have mine extracted off my Jeep by a tire shop because the idiot who put the last tires on overtightened them, and the two-piece lug nuts came apart when I tried to change a tire.
I replaced them all with spline drive and made sure they were torqued correctly. I liked them so much I put spline drive nuts on my BRZ as well.
Quote:
Originally Posted by Stang70Fastback
I've helped several people remove lugs that were clearly put on by a tire shop with an impact gun and in some cases we actually DID have to resort to the "find a 300 lb guy and ask him to jump on the wrench" method.
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A
good tire shop will use torque adjustable impact wrenches that are regulated so they don't overtorque, and they'll dial in the appropriate torque for the hub they're working on. Unfortunately there are a lot of mediocre tire shops that don't bother.