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Were all 3 stripped studs on 1 side?
FYI, the rear studs press directly into the axle flange which along with the axle shaft, is made as 1 piece, so the flange does not come off separately.
I use air guns on lug nuts almost every day I work and almost every time without issues. However, nothing is perfect and I do encounter stripped lug nuts, stripped wheel studs, broken wheel studs and the rare slipping studs.
If any of the the above mentioned problems occur while I am removing a lug nut, there is no way the use of my air gun is responsible.
The improper use of an air gun while installing a lug nut can cause some of the problems, but a spinning wheel stud is either a problem that was created over time, or by the use of the wrong replacement stud or by a poor installation of a replacement stud. I supposed corrosion could also be a factor, but I have never seen it.
As to responsibility, you can't always use the "your the last one to touch it" defense. Sometimes it's just an old parts time to bite the dust. Remember the studs could be 24 years old and I have changed studs on newer cars than that.
It is possible to change the rear studs without removing the entire axle shaft. Volvo made a special hand tool, but you can improvise.
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Eric
Hi Performance Automotive Service (formerly OVO or Old Volvos Only)
Torrance, CA 90502
hiperformanceautoservice.com or oldvolvosonly.com
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