Stripped Lug Nut....Help

[Ronbo]

Try to take the whole hub off. You'll need to unbolt everything off the caliper and rotate it off the mount.

You may be able to get to the back of the stud from under the car, either drill it out with a 1/2" drill bit or grind the head off. (Depends on the shape of your knuckle)

You can also unbolt the knuckle itself from the A-arms to get the assembly off the car. (support the lower A-arm with a floor jack)

If your lucky the stud backed out but it's likely the splines are not grabbing at the base of the stud, either enlarged hub stud hole or bad stud. Just for grins try running the lug down with a impact wrench and see if it grabs/seats then loosen.

Once you get it all apart I'd change all the studs out, If ones bad there might be others and this is not something you want to ever do again.

This could also be from a tire shop not pre-threading the lugs and they cross-threaded it with a impact wrench. (seen this more than once)