HELP - Cragar SS Lug Nut Washers Keep Crushing

HELP - Cragar SS Lug Nut Washers Keep Crushing - Need Alternatives!

67Dart273 said
Does that lug hole have a washer stuck in it? That does not look conical to me........

View attachment 1715272861

Agree. There's not much, but it sure isn't flat either.

mobilecustoms - you could stick a piece of clay on the hole to better see the shape.
Basically I think RRR is right on this.

MobileCustoms said
I think you may be correct. My wheels don't have any relief cut in them for a conical lug nut but maybe that's just how they are. I'd be a little concerned about cracking the wheel from trying to seat them. They also offer some other conical nuts with a little shank on them which I think would be even better. I would still probably need to install longer studs either way.
View attachment 1715272860

Only thing to watch for on those is the diameter isn't too large. With conical seat, thats what the nut and wheel should center on - the seats.
Thread engagement rule of thumb is equal to the diameter but at least 5 threads no matter what. With the sbp I like to see closer to 10.
Gorilla brand had a good selection of 7/16-20, at least they used to.

MobileCustoms said
will make sure I don't go above 75-80 lbs max, next time I install them

55 ft lbs is all that Chrysler called for. I know its alot less than AMC and GM call for on their 7/16 lug nuts, but 55 is all thats needed to properly tension the Chryslers. I do tend to err on the high side and set the final torque target to 57 ft lbs.