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-   -   When was the last time you changed your rear hubs? (https://www.miataturbo.net/race-prep-75/when-last-time-you-changed-your-rear-hubs-72613/)

emilio700 05-18-2013 09:23 PM


Originally Posted by codrus (Post 1012973)
Any thoughts on the useful lifetime of ARP wheel studs?

--Ian

We have never seen an ARP Miata wheel stud fail. We have a few ART studs fail so we stopped using them two years ago.

z31maniac 05-19-2013 12:10 AM


Originally Posted by Morshu (Post 1013028)
My axle was stuck in my hub, and even after applying pb blaster daily for a week and a half, and taking it to 3 different shops that used their 20 ton presses on it, it still wouldn't budge. I had to buy a new knuckle/hub from a wrecked miata to complete my torsen swap.

You can try to separate them, but my advice would be to just buy another axle and knuckle, and a new hub and wheel bearing. Don't forget anti-seize on the axle splines.

That's how I ended up with Planet-Miata rebuilt rear spindles. Nothings would get the old half-shafts out.


Originally Posted by emilio700 (Post 1013035)
We have never seen an ARP Miata wheel stud fail. We have a few ART studs fail so we stopped using them two years ago.

I'm confused.

ART states they use ARP studs (at least the ones ordered through Flyin' Miata) which is what currently resides on my track bitch.

Flyin' Miata : Chassis : Suspension components : Blueprinted front wheel hub

I apologize, I ordered my ART hubs with ARP studs. But you can order "stock" or "ARP studs" and I ordered mine with ARP.

So was it "stock" studs that broke on you?

emilio700 05-19-2013 02:01 AM


Originally Posted by z31maniac (Post 1013075)
I'm confused.

ART states they use ARP studs (at least the ones ordered through Flyin' Miata) which is what currently resides on my track bitch.

I apologize, I ordered my ART hubs with ARP studs. But you can order "stock" or "ARP studs" and I ordered mine with ARP.

So was it "stock" studs that broke on you?

Black ART brand extended studs, not sourced or manufactured by ARP, not OEM. Year ago.

Maybe ART no longer offers their house brand studs? I have no idea as we tossed the installed and NIB spares we had and switched to ARP's after that race.

End of this video

Savington 05-19-2013 03:40 AM


Originally Posted by codrus (Post 1012973)
Any thoughts on the useful lifetime of ARP wheel studs?

--Ian

$104 for a set of 4. I'll change them once a year at that price.

z31maniac 05-19-2013 11:25 AM

Hmm, interesting. I just went out and checked my car, the front studs from the ART hubs that are supposed to be "ARP studs" are black and shorter. The rear studs from my Planet-Miata rebuild spindles/hubs are also supposed to be ARP, but are gold and a bit longer.

Does ARP only sell gold studs? I'm kind of unhappy if didn't actually get ARP when that's what I thought I was paying for.

Savington 05-19-2013 12:04 PM

ARPs are all gold plated AFAIK. The ART studs that I no longer use (I broke one last year as well) are black.

Scrappy Jack 05-21-2013 11:06 AM

1 Attachment(s)
I'm trying to gather the parts for the rear hub swap in preparation of installing the TSE BBPK and need some clarification. I've already done the fronts, but have never done the rears on a Miata.

Help me with what parts I need to order to refresh the rear corners.

https://www.miataturbo.net/attachmen...ine=1369148794

33-042
33-061 (includes 33-062)
33-048
33-047

?

Savington 05-21-2013 01:10 PM

33-065
33-047 (or FLAPS equivalent)
reuse 33-048
remove 26-261
replace 33-062 with ARP studs
33-061
33-042

Remember that ALL new hubs are the 94-05 style, so when you're ordering ARP studs for new hubs, order them for the 94-05 rears.

I just put several sets of ARP studs in stock and I'll get them on our website in a day or two - $104 per set of 4.

Sokool 05-21-2013 04:03 PM

Are Dorman 930-550 replacements found at Napa and such worthy of track service? I can get them for $22 a side.

emilio700 05-21-2013 06:42 PM

Posted wrong video before. The first one was two left front studs broken in 4hr enduro, spotted at fuel stop. We elected to limp around and just take it easy on the left turns. Next day we broke all 4 LR studs. Here's that video (at the end):


emilio700 05-21-2013 07:12 PM


Originally Posted by Sokool (Post 1014039)
Are Dorman 930-550 replacements found at Napa and such worthy of track service? I can get them for $22 a side.

That's what we have switched over to. Made in Taiwan. Radiused where the OEM's fail.

Sokool 05-21-2013 07:16 PM

Good to know!

Scrappy Jack 05-22-2013 08:41 AM


Originally Posted by emilio700 (Post 1014088)
That's what we have switched over to. Made in Taiwan. Radiused where the OEM's fail.

Is it safe to assume you are swapping out the included Dorman wheel studs with ARPs?

emilio700 05-22-2013 01:23 PM


Originally Posted by Scrappy Jack (Post 1014281)
Is it safe to assume you are swapping out the included Dorman wheel studs with ARPs?

I would assume that to be self evident. We never use OEM studs on the race cars. Our 95R street project car has OEM studs but those will be swapped when we install the Dorman rear flanges.

Mobius 05-22-2013 06:46 PM


Originally Posted by Sokool (Post 1014039)
Are Dorman 930-550 replacements found at Napa and such worthy of track service? I can get them for $22 a side.

From where? I am showing $44 per at Napa.

emilio700 05-22-2013 08:02 PM


Originally Posted by Mobius (Post 1014480)
From where? I am showing $44 per at Napa.

RockAuto Parts Catalog

Savington 05-22-2013 08:16 PM

I have a Mazda hub floating around we were using for R&D. I'll try to post some photos of the Dorman part and the Mazda part together later this week.

Mobius 05-22-2013 10:16 PM


Originally Posted by emilio700 (Post 1014493)

Derp. Thanks Emilio.

comradefks 05-23-2013 10:58 AM

Does Dorman have a solution for the front hubs that would save some coin too? Didn't see it on Rock Auto's site or NAPA for that matter.

bbundy 05-23-2013 12:05 PM

2 Attachment(s)
What hubs are people getting when they order the Dorman hubs?
I ordered two hubs at once from Amazon and here is what I got.

One on the left says made in Taiwan has OEM looking studs with 1990-1993 knurl diameter and two threaded holes in the flange.

One on the right says made in China has black studs with 1994+ knurl diameter and no threaded holes in the flange.

https://www.miataturbo.net/attachmen...523_071323-jpg


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