I posted this in the Tires forum with no help maybe someone here can help:

I needed to get longer Wheel Studs in order to pass tech for the pro star wheels at IDRC so I got the Nismo 60 mm Hub Bolts and they worked great, however when changing back to street tires I shaved off 4 of the bolts, I guess the Closed Weld Lug Nuts are just a bit too short and since no one seems to make 12x1.25 mag lug nuts that are open ended I'm hoping that maybe ARP makes Wheel Studs that don't break every time I change my tires since this is getting really expensive.

Long story short:

Anyone know the dimensions that I need to give ARP in order to find out if they make a stud that fits the rear wheel hubs on the Z.

also is it possible to replace the 12x1.25 with a 12.1.5 on the Z which would solve the stupid lug nut problem?

Help is appreciated

 

I've got the open ended lug nuts on my Nismo 60mm studs. I'll lookup where I got them and let you know...

 

check these out...
http://store.yahoo.com/yhst-14083816...ulugnu123.html

 

these only work on stock wheels the prostars need the Shank Type.

With the help from Jegs I found some today from Mcgard but they need to be special ordered

 

you are actually breaking the lug bolts? is this happening on the street, or on the track?

 

they are soft as butter...

actually as I said above the weld lug nuts are closed and they are a bit too short for the 60mm bolts but the 50mm bolts are too short to pass techl, perfect would be a 55mm bolt.
So when I put the lug nuts on and torqued them they cut into the top of the lug nut and upon removing it shaved the top of the bolts off. not letting me screw on the regular bolts anymore.

I've been through about 7 or 8 bolts in the last month that's why I want to get ARP Bolts that are designed for constant tire changes as well as open lug nuts for the prostars.

 

you could just cut or grind the closed ends off the mag style lugs. or have the hubs redrilled to accept the 1.5's. i know some of the styles of those mag type lugs just use an insert to close the end, making it possible to knock it back out and have it open end.

 

as I said earlier I have actually found 12x1.25 open ended mag nuts...finally

but I still would like to replace the Studs with ARP studs but need the dimensions of the oem ones since ARP does not list them by car but by size