View Full Version : Longer Wheel Studs
BernardZX2
05-19-2008, 04:48 PM
Is it possible to switch out the studs for longer ones?
The story.
I've realized I have a rubbing issue with rims. There is only two ways of fixing it that I know of: New rims ($$$) or a wheel spacer (1/4in).
I don't want to use wheel spacers without longer studs for the lugs to hold on to. Is it possible to switch out the studs for longer ones?
ImCrazy
05-19-2008, 04:52 PM
I don't see why not.
BernardZX2
05-19-2008, 05:17 PM
I just remembered. I broke one of the studs on the front wheels and had to repalce it a couple years ago. It was an absolute PITA. I ended up taking it to a shop to have the hub pressed out in order to replace the stud. It's gonna suck doing that again.
BTW anyone know how long the stock wheel studs are?
Edit: Found it: 42mm or 1.65in. Now I have to find the exact same stud but a 1/4in longer. Any tips or links?
Found these. Link (http://www.jegs.com/i/ARP/070/100-7703/10002/-1)
iceracer
05-19-2008, 05:35 PM
Longer studs can be installed. Just the hassle of doing them. You can use up to a 5 mm spacer with the stock studs, nothing more.
tre2000zx2
05-19-2008, 06:48 PM
arp makes longer studs for drag rims.. stronger too
Chuck Norris
05-19-2008, 09:03 PM
Chuck Norris Has A Massive Cock
OGreaTFuzzY1
05-19-2008, 09:08 PM
no he doesn't now stop going off topic =p
yea it will be a pain but you should be able to
~Fuzzy
SRBandit
05-21-2008, 10:53 AM
I had to replace some (front) wheel studs, too (previous owner cross-threaded them).
You can do the studs without taking the hub off if you have a die-grinder. Get a cut-off wheel (I used a 1.5" diameter wheel), and notch the collar at the back of the wheel stud. You can access it by removing the wheel and rotating the hub until you can see the stud from behind. You'll have to take off enough material to clear the knuckle.
Then you can rotate the stud so the notch aligns with the metal on the knuckle and hammer it out.
To install new wheel studs, either get replacement studs that have the notch already cut, or cut the notch yourself. Installation is the reverse of removal.
BernardZX2
05-21-2008, 05:28 PM
That's alot of work if you want to replace all 8 studs. Especially if you have access to a shop with tools (press). :) The military does have some perks I guess.
BernardZX2
05-21-2008, 05:30 PM
arp makes longer studs for drag rims.. stronger too
Which ones are those. I found some but none seem to fit the same specs of the stock studs. One that I did find was a good 2 inches longer. I only need it to be 1/4" longer.
tre2000zx2
05-21-2008, 07:05 PM
Which ones are those. I found some but none seem to fit the same specs of the stock studs. One that I did find was a good 2 inches longer. I only need it to be 1/4" longer.
OOO.. they're long ones... 2-3 inches is about right.. best thing would be give them a call they should have something for ya a lil shorter than those
mechtech
05-21-2008, 11:42 PM
You may have enough threads already, and not need to do anything.
I am not a fan of spacers, and 1/4" is a lot.
Check the thread depth in the lugnut with the spacer and wheel on .
You may have more than enough.
iceracer
05-22-2008, 07:04 AM
When I bought my 5mm spacers the supplier said that if you can get 6 full turns of the lug nut with the spacer & wheel installed, you are good to go.
Any place that sells wheels, spacers etc.can supply longer studs.
You may have to go with Mazda.
ZX2Racer
05-23-2008, 04:10 PM
I have a 1/4 inch spacer on my right front and I race the car on an oval. Holds on just fine. I haven't had any problems yet..............
cone-cerned
05-23-2008, 08:37 PM
My son cross-threaded one of the front lug nuts, with an impact wrench. We broke the stud trying to get the nut off. I took the opportunity to replace all 8 front studs and install 1/4" spacers (max for SCCA stock). I got the new studs from Jegs. They are Arp #100-7708. 12mm x 1.50* for late model GM. They actually measure 2" of threads. They work just fine for me. I used deeper acorn nuts.
I removed the hubs and pressed in the new studs. I was working by myself, so it took me about 4 hours to get it all done (IIRC). It was probably about 3.5 hours for the first side and 1/2 hour for the second side.
Kestas
05-24-2008, 10:01 AM
Our company manufactures OEM hub units for the auto makers. Using longer studs implies that your wheel offset will be greater than originally designed, and thus add more load (stress) to the bearings. The bearings are designed at the fine edge of what will work and have no robustness built into them. You can expect premature bearing failure with this setup.
BernardZX2
05-28-2008, 05:22 PM
[QUOTE=cone-cerned;34396]They are Arp #100-7708. 12mm x 1.50* for late model GM. They actually measure 2" of threads. They work just fine for me. I used deeper acorn nuts.QUOTE]
Yea. I found the same thing by cross referencing wheel stud specs. I went and got some stock ones from Advance. The special ones that are 52mm long. I planned on installing them when I did my tranny swap but I could not find the spacers.
I have to use tuner lugs for my rims. They should work though.
ps. Since I could not find the spacers I could not verify if I needed longer studs.
BernardZX2
05-28-2008, 05:23 PM
Thanks for notice Kestas. I'll keep that in mine and check them regularly.
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