Extended Stud Options?

[honeybadger]

I do still have the original hubs on the car now, but I'm suspicious that one is going out. I'd prefer not to press these studs out and into the next hubs, I'm just concerned that the ARPs are too short for a 35mm spacer. To get the same amount of threads as OEM studs without a spacer, I would need a 3.81" UHL. I don't know how tight I'd be with only the extra 1".

you'll definitely need the MSI R length studs for a 35mm spacer. My ARP studs were maxed at 25mm

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[sigintel]

Forum search Dorman 610-530 $35 grade 10.9 F250 Truck studs.
Dorman 610-509 as alternative.

Both have shoulders which is stronger than threaded to the base.
For insane overkill, I used 610-333 once, but they are super massive overkill w full shoulder 5/8" thick. Not recommended cause overkill heavy lol.

ARP are great and all, but first time a wheel bearing dies, Id rather put in fresh 610-530 then spend time to reuse the $$$ ARP after the knurl has already been forged into a hub and then back out.... Its awkward to look at the pretty ARP studs on a dead bearing and realize its just wasted money...

Larger knurls can be quickly and lightly dressed on bench grinder/dremel/file/etc to bring down to .6245 for faster install, or left "fat" as needed if its replacing a previous boogered stud in worn hole.

Use install tool Lisle or bearing etc, and remove via ball joint puller or similar. Do not use a freakn hammer as you damage the bearing since they are very high hardness and designed for high load but not impact shock.

Stock studs are 49.9mm with 0.625 knurl. cut n paste from phone notes:
$$$:
ARP ... *

$35:
610-435 57.94mm 0.628knurl
610-509 73.4mm 0.627knurl *
610-437 76mm 0.628knurl
610-530 78mm 0.626knurl *
610-333 90.5mm 0.625knurl *
*Have personally used/tracked

edit: Metric Dorman wheel studs are 10.9 and equivalent Grade 8 HW. Source: Dorman Product Manager first hand direct personal contact.
For reference: 10.9 ISO 898-1 and Grade 8 SAE J429 are both 150ksi 1040MPa minimum ultimate tensile strength.
Before 2004, I had test results on 46 studs that were all well

610-530 78mm 0.626knurl w 25mm spacer w Apex 18x11 ETxx leaves 12 complete threads exposed and Ford Racing lugnuts completely engage all 8 threads w 2-4 threads spare on stud.

I have personally used 27mm, 30mm and 35mm spacers w Apex 18x11 with 610-333. I opened the thru holes in all my spacers with a 5/8" bit so they just slide over the stud shoulder. After testing, I settled on a 24mm spacer with the 18x11 square setup. After both those wheel bearings died, I switched to 610-530.

 

[trackd]

you'll definitely need the MSI R length studs for a 35mm spacer. My ARP studs were maxed at 25mm

Why the need for 35mm spacers? 19x11 Apex wheels ET52 fit fine with 25mm and ARP studs, although true cannot use wider spacers.

 

[ChipG]

Why the need for 35mm spacers? 19x11 Apex wheels ET52 fit fine with 25mm and ARP studs, although true cannot use wider spacers.

Because I'm running 11.5" wheels.

 

[NightmareMoon]

Yeah the ARP stud is fine for a 25mm spacer but not longer.

Too bad OPMustang is out of the longer ones.

 

[Epiphany]

I've been eyeing these for months but unfortunately they have been sold out for a while

MSI has been backlogged for quite some time. They have a number of constraints they are dealing with. Hardware is going out the door in smaller batches so grab them quick if they pop up as available...

 

[whatisgrip]

I've sent Tim at OP a message so I'll be sure to update when I hear back.

Guess the ARP studs could be a last resort option if MSI is backed up.

 

[baevid]

I don't regularly check their website every day but I haven't been able to snag any OPMustang hubs since asking him when he was expecting more in June 2021.

 

[whatisgrip]

UPDATE: There's a restock on GT4, 350 R studs and few hubs

 

[Performance nut]

Forum search Dorman 610-530 $35 grade 10.9 F250 Truck studs.
Dorman 610-509 as alternative.

Both have shoulders which is stronger than threaded to the base.
For insane overkill, I used 610-333 once, but they are super massive overkill w full shoulder 5/8" thick. Not recommended cause overkill heavy lol.

ARP are great and all, but first time a wheel bearing dies, Id rather put in fresh 610-530 then spend time to reuse the $$$ ARP after the knurl has already been forged into a hub and then back out.... Its awkward to look at the pretty ARP studs on a dead bearing and realize its just wasted money...

Larger knurls can be quickly and lightly dressed on bench grinder/dremel/file/etc to bring down to .6245 for faster install, or left "fat" as needed if its replacing a previous boogered stud in worn hole.

Use install tool Lisle or bearing etc, and remove via ball joint puller or similar. Do not use a freakn hammer as you damage the bearing since they are very high hardness and designed for high load but not impact shock.

Stock studs are 49.9mm with 0.625 knurl. cut n paste from phone notes:
$$$:
ARP ... *

$35:
610-435 57.94mm 0.628knurl
610-509 73.4mm 0.627knurl *
610-437 76mm 0.628knurl
610-530 78mm 0.626knurl *
610-333 90.5mm 0.625knurl *
*Have personally used/tracked

edit: Metric Dorman wheel studs are 10.9 and equivalent Grade 8 HW. Source: Dorman Product Manager first hand direct personal contact.
For reference: 10.9 ISO 898-1 and Grade 8 SAE J429 are both 150ksi 1040MPa minimum ultimate tensile strength.
Before 2004, I had test results on 46 studs that were all well

610-530 78mm 0.626knurl w 25mm spacer w Apex 18x11 ETxx leaves 12 complete threads exposed and Ford Racing lugnuts completely engage all 8 threads w 2-4 threads spare on stud.

I have personally used 27mm, 30mm and 35mm spacers w Apex 18x11 with 610-333. I opened the thru holes in all my spacers with a 5/8" bit so they just slide over the stud shoulder. After testing, I settled on a 24mm spacer with the 18x11 square setup. After both those wheel bearings died, I switched to 610-530.

OK you have my attention. I plan on using SM-10 Apex 19x11" ET52 with 25mm spaces. I just want to make sure I'm reading this right that normal lug nuts seat properly with a Dorman 610-530 with a few threads to spare.

I ordered ARP 100-7733 and waiting on inventory. I'll be happy to cancel and get Dorman

 

[sigintel]

OK you have my attention. I plan on using SM-10 Apex 19x11" ET52 with 25mm spaces. I just want to make sure I'm reading this right that normal lug nuts seat properly with a Dorman 610-530 with a few threads to spare.

I ordered ARP 100-7733 and waiting on inventory. I'll be happy to cancel and get Dorman

Go with whatever makes you confident.

The images of the 610-333 are somewhere on the forum
images 610-530 below:
18x11 ET52 Apex with 24mm spacers and Ford Performance lugnuts (ten threads).
You can see the spacer between the wheel and brake rotor
lol, wheels are protected by a coating of brake dust.

 

[Performance nut]

Go with whatever makes you confident.

The images of the 610-333 are somewhere on the forum
images 610-530 below:
18x11 ET52 Apex with 24mm spacers and Ford Performance lugnuts (ten threads).
You can see the spacer between the wheel and brake rotor
lol, wheels are protected by a coating of brake dust.

I really appreciate the pictures. I'm thinking there is no difference in backspacing between an 18x11" and 19x11" with ET52 made by the same manufacturer. Your spacer is 1mm thinner which is about 1/32" difference. I'm guessing that is about a thread difference.

What tire compounds do you run on the track? I think I have either seen you at COTA or seen pictures of you there. If these can survive that track, they can take pretty much anything I throw at them.

 

[Bitten in '69]

For those who need, or want, the ARP studs, I just took delivery of a set from the Shelby Store.

 

[Jbraun2828]

I ordered gt350r hubs with the longer studs and received them yesterday.
Part # Fr3z-1109-a, if anyone wants to go that route. They are not cheap.

 

[Tonymustang302]

Why are you not running the opmustang gt4 studs. I use 31mm spacers up front have have plenty of thread left

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