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I will be watching this. I need them for my 89 to be legal at the strip. The stud must enter the *head* of the lug by the diameter of the stud. Mine are a tad short if they get picky, but then again I don't have a cage yet, so that will be the least of their worries I would guess :D
you can go to moroso.com and look them up there also, they a $9.98 for a pack of 5 from summit racing, only difference is they are standard thread instead of metric, :cheers:
A lot of the TCC racers are using GM # 22551491. I tried the ones from Rippie and had trouble with stripped threads. I switched to the GM studs and have had great success, plus they are a little longer with a pilot on the end of them.
Dorman #610-323 is m12x1.5x54mm with the correct knurl.
They are about .5 inch longer than stock and found at any CarQuest
for about $2.50 per stud.
If you need longer, ARP does wheel studs for most GM cars. Most Speed
Shops will carry them or call Summit Racing.