When I was putting these wheels on my car I noticed that the nuts did not go all the way onto the threads. (see picture) I am concerned that the nuts may back themselves out. Before I test out the wheels on the road, I would like to know your opinion on the issue.

 

you can put in longer studs......better safe then.........

if you've torqued them properly, it shouldn't be an issue. the lugs appear to be seated enough on the studs.

Well, the lug nuts look like they are tightened down the same all around the wheel. Looks strange that the studs aren't longer. What is with that? Did someone replace all studs with shorter ones?

The inner face of the wheel center is flat against the hub face, right? No spacers or centering rings holding them apart?

aluminum oem wheels use lug nuts that are chromed, and the end is covered. These are not the correct nuts for oem aluminum wheels. I doubt it has anything to do with the studs, but EVERYTHING to do with the style of nut you chose to use. Get the right nuts and be done.

like this

The wheels are from a 2003 impreza (i think). I am putting them on a 91 legacy. They have decent clearance when they are straight. I have not tested them on the road, so I don't know if they will clear while turning.

They're probably fine. The stud comes up to the last thread of the lug nuts. The main thing you would have to worry about there is stripping the thread when tightening.

Some wheels do require "mag" (that's what I've always heard then called at least) type lug nuts rather than the standard conical seat kind. The mag type use a cylindrical shaft to center the lug stud and hold the wheel with a large flat washer. Seen here:

I know Chrysler, Lincoln, and Jaguar use these, probably plenty of others as well.

Mattdni. What they are saying is that the correct "nut" is not a nut. It is a Threaded sleeve type of nut. Its shank passes thru the wheel and aligns by its outer shank And grips threads below the wheel surface.Then there is a taper near the cap for final alignment.

They look just fine to me. You have plenty of thread engagement if that is your concern - as to if these nuts are the proper one's for those rims - you will have to inspect the seat in the rim to know for sure. Being Subaru alloys I suspect they are just fine but it never hurts to double-check.

 

GD

my 90 legacy lugs are the same way with 96 alum. wheels. i've been running it that way for years now and never had an issue.

Alloy vs. steel shouldn't even matter - the thread engagement is the same for both from what I've seen.

 

GDC