Extended wheel studs for front?

[MattRobertson]

I need them for the front. I only get about 50% engagement of the lug nut threads and I'd like 100%. Really I need it given the car's use in road course racing. If it turns out I need to use hub-centric 3mm spacers with my Hoosiers... well then I'm really wanting longer studs. I noticed some of the guys in the paddock had them fitted on their cars and they claimed its easier to mount and dismount the wheels with them as well.

For street use I have extended lug nuts so I could get away with maybe an extra 1/2" to 3/4" of length. Maybe even a full inch. My racing wheels use open lugs so length is a non-issue.

Ideas, anyone? I don't know where to start.

[MAGFX]

I might have you covered. I researched and found some that I ran on my RT a few years ago.

Will be right back with some info.

[MAGFX]

Here we go, Matt.

Here is a visual comparison between the ones that I used (1/4"+) and stock.
http://i83.photobucket.com/albums/j312/jonnfx/My%20Custom%20Stuff/CIMG0008.jpg

These are the 1/4" and the 1" longer ones.
http://i83.photobucket.com/albums/j312/jonnfx/My%20Custom%20Stuff/CIMG0009.jpg

The first stud is a tad over 1/4" longer than stock. Notice that the spline length is a bit shorter, although the O.D. of the splines are about .005" larger on the new stud. This should help when pressed into a used hub. The other stud is a full inch longer than stock, with the same spline O.D. The extra spline length should not cause any problems and if the overall length is too long, they can always be cut down.

*One modification has to be done on these. Our stock studs have a flat cut out of the round end flanges and the new ones do not. You can kinda see that in the first picture. I machined them off on a mill, but a grinder should do fine.

*I did press these out and back in with the hub (front) on the car. I modified a beefy C-clamp for this. As you would know, to hammer the studs out of these hubs would be a no-no.

Here (https://www.dormanproducts.com/cgi-bin/vm91corp30r/item-dtl.w?sid=ijnGkynFjphAdhlb010743897182466423&item=610-435&icrid=&clt=hwrap1&vsrch_str=610-435&vsrch_brand=ALL&vsrch_cat=ALL&st_amount=&end_amount=&start=&vfrom=&prev=&vnext=&category_list=:0) (#610-435) is the first one. I think that I bought mine at a NAPA store. Here (https://www.dormanproducts.com/cgi-bin/vm91corp30r/item-dtl.w?sid=wfjjddWllCnbIfiz010743894337811129&item=610-326&icrid=&clt=hwrap1&vsrch_str=610-326&vsrch_brand=ALL&vsrch_cat=ALL&st_amount=&end_amount=&start=&vfrom=&prev=&vnext=&category_list=:0) (#610-326) is the second one which I found at AutoZone for $1.99.

Good luck, bud. :rock:

Cheers...Jonn

http://i83.photobucket.com/albums/j312/jonnfx/My%20Custom%20Stuff/CIMG0266.jpg

[MattRobertson]

Outstanding. Thanks Jonn! Super helpful!

[MattRobertson]

As a follow up, I bought the 1/4"-longer studs. Unfortunately, I could not get the cheaper Dorman studs, which at present are made of unobtainium in California it seems. All of the auto parts stores had the part number and all of them said "not in stock and can't order them."

The alternative is to buy the genuine GM wheel stud, which is what I did. The Dorman Products links that MagFX gives above (if you get a session expiration warning, go to the site's home page and then search for the Dorman part number he gives in his post) will give you both the original GM part number for a direct search. It will also give you the vehicles for which the parts fit in case you want to walk into the local Napa and try your luck.

Once you have the GM part number, go to a GM parts place like http://gmpartsdirect.com and search for the part number.



The 610-435 Dorman studs are GM part 15734261, which is available for $3.41 per lug plus shipping at gmpartsdirect.com.
the longer 610-326 Dorman studs are GM part 15545356. A search of gmpartsdirect.com comes up empty on that part number.

One interesting thing about longer wheel studs is a bit nasty: The longer the studs the more careful you have to be about putting the wheel on exactly straight. Get it sideways and it can hang up *tight* on the longer studs.

[RobAGD]

I did the rears on mine with the dorman I still have the fronts to do. I woudl like to get the longer stud for the the rears.

-Robert

[ZMagnum]

What a bunch of studs.