ARP wheel studs 1.95 UHL? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

GrabTheWheel · 08-30-2019, 04:12 PM

Has anyone installed these ARP wheel studs? I know I don't want the extended ones because I'm not running a spacer; so was thinking the stock length ARP stud then I noticed they have this 3rd option that switches thread from 12x1.25 to 12x1.5 and they are just slightly longer than stock. They will be paired with 949 racing lugnuts. So which should I get stock length with 12x1.25 thread or the slightly longer 1.95 UHL ones with 12x1.5 thread?

wparsons · 08-30-2019, 05:56 PM

Why bother getting the slightly longer ones? 0.2" is 5mm, so if you don't need the extra length you'd be fine with the stock length ones.

It's interesting that there's at least 4 options for our cars now... the original ones were these ones: https://arp-bolts.com/kits/arpkit-de...hp?RecordID=76 and aren't even listed under the FRS anymore.

I wonder if the slightly shorter ones that are listed now (100-7729) are short enough to be pulled into the rear hubs without removing it from the car. The 3" ones definitely won't go in, but maybe 0.5" less makes it fit.

EAGLE5 · 08-30-2019, 06:20 PM

Only ask in one place.

Impureclient · 08-30-2019, 09:30 PM

Quote:

Originally Posted by wparsons

I wonder if the slightly shorter ones that are listed now (100-7729) are short enough to be pulled into the rear hubs without removing it from the car. The 3" ones definitely won't go in, but maybe 0.5" less makes it fit.

That is correct, I did it last year with the 2.535" ones(100-7729): https://www.ft86club.com/forums/showthread.php?t=128354.

cmiovino · 07-22-2021, 05:49 PM

Noticed they now have 1.95UHL studs in 12x1.25. The only difference appears to be that the 1.95's have a 0.2 cone on top to help cross threading issues vs the standard 1.75 ARP replacement ones.

Can anyone confirm if the 1.95 ones will slide in the back without removing the hub like you need to do for typical extended studs that are 2.5 inches+?

dragoontwo · 07-27-2021, 09:50 AM

Quote:

Originally Posted by cmiovino

Noticed they now have 1.95UHL studs in 12x1.25. The only difference appears to be that the 1.95's have a 0.2 cone on top to help cross threading issues vs the standard 1.75 ARP replacement ones.

Can anyone confirm if the 1.95 ones will slide in the back without removing the hub like you need to do for typical extended studs that are 2.5 inches+?

If Amazon reviews are to be believed.

Quote:

These are the absolute longest studs that can be installed in the rear hubs of the BRZ and FRS WITHOUT removing the hub from the car. If they were even 1mm linger, the House b would have to come off. There is just enough space at the very bottom, to wiggle the new stud in after the old it hit out. The caliper and rotor need to come off, but nothing else. Great design.

RToyo86 · 07-27-2021, 10:31 AM

As referenced via link posted above you can install 2.5" studs on the rear hubs without removing them. 1.95" are the longest as a straight install.

I used a Dremel to cut off the nipple at the end and was able to wiggle them in by rotating the hub and angle them in.

08-30-2019, 04:12 PM	#1
GrabTheWheel Senior Member Join Date: Feb 2018 Drives: 16' BRZ Location: California Posts: 362 Thanks: 76 Thanked 162 Times in 91 Posts Mentioned: 2 Post(s) Tagged: 0 Thread(s)	ARP wheel studs 1.95 UHL? Has anyone installed these ARP wheel studs? I know I don't want the extended ones because I'm not running a spacer; so was thinking the stock length ARP stud then I noticed they have this 3rd option that switches thread from 12x1.25 to 12x1.5 and they are just slightly longer than stock. They will be paired with 949 racing lugnuts. So which should I get stock length with 12x1.25 thread or the slightly longer 1.95 UHL ones with 12x1.5 thread?

07-22-2021, 05:49 PM	#5
cmiovino Senior Member Join Date: Aug 2020 Drives: 2017 BRZ PP, 2004 WRX Location: Pittsburgh Posts: 479 Thanks: 40 Thanked 355 Times in 218 Posts Mentioned: 8 Post(s) Tagged: 0 Thread(s)	Noticed they now have 1.95UHL studs in 12x1.25. The only difference appears to be that the 1.95's have a 0.2 cone on top to help cross threading issues vs the standard 1.75 ARP replacement ones. Can anyone confirm if the 1.95 ones will slide in the back without removing the hub like you need to do for typical extended studs that are 2.5 inches+? __________________ 2017 BRZ Limited Performance Pack - Steel Cities Region SCCA / North Hills Sports Car Club

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07-27-2021, 10:31 AM	#7
RToyo86 Senior Member Join Date: Mar 2018 Drives: 17 Asphalt 86 Location: Ottawa Posts: 2,385 Thanks: 1,878 Thanked 2,632 Times in 1,286 Posts Mentioned: 16 Post(s) Tagged: 0 Thread(s)	As referenced via link posted above you can install 2.5" studs on the rear hubs without removing them. 1.95" are the longest as a straight install. I used a Dremel to cut off the nipple at the end and was able to wiggle them in by rotating the hub and angle them in.

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