[AT] Lug Nuts

[Steve W.]

jtchall at nc.rr.com wrote:
> Got a 66 Mustang I bought in 87. Its got some really weird chrome rims--they 
> have slots instead of holes to fit different bolt circles. They use a 
> shouldered lug nut. You have to slowly tighten them up or you will cause the 
> shoulder to pinch. When I got the car we had to use a 3/4" air wrench to get 
> some of the lug nuts off.
> 
> Every tire tech I've ever watched just runs the bolt/nuts up with no regard 
> to what should be happening. I always run them up slow, sometime by hand. 
> Then I set my torque wrench about 15 lbs lower than what is called for. Once 
> I torque them at that setting I adjust for the final torque. I will confess 
> I only torque aluminum rims. Everything else I tighten by hand, unless we 
> are talking tractor tires, then I'll use the air wrench. Even then I 
> progressively tighten them. Might be a little overkill, but it works for me.
> 
> John Hall
> 

Those are a common style of rim actually. Unilugs. The idea is that they 
fit multiple lug circles with one rim. Most use a shouldered lug nut 
with a washer. There used to be kits out there with elliptical bushings 
that you could install in the holes to make them center up better.


-- 
Steve W.