Is there 2 different size knurls on wheel studs???
11-02-2012, 04:42 PM
#1
Is there 2 different size knurls on wheel studs??? I'm putting in longer wheel studs due to having to use wheel spacers for my brembo brake install.
The studs I got have a knurl on them that are ~12.9mm (0.509") but it looks like the stock studs have a 12.73mm (0.495")knurl.
I looked into the ARP's and they also have a larger knurl on them. So how are people getting them seated? Should I open up the holes in the hub?
The reason I ask is because it is nearly impossible to get the studs in at this point.
The studs I got have a knurl on them that are ~12.9mm (0.509") but it looks like the stock studs have a 12.73mm (0.495")knurl.
I looked into the ARP's and they also have a larger knurl on them. So how are people getting them seated? Should I open up the holes in the hub?
The reason I ask is because it is nearly impossible to get the studs in at this point.
Last edited by The Alchemist; 11-02-2012 at 04:52 PM.
11-02-2012, 07:58 PM
#3
See, that's the thing, the ones that came out measured 12.73mm and the ones I bought were 12.88-12.90mm depending on how hard I squeezed the caliper. I'm taking the hub and studs to my machinist and using his press to press them in. I think my old studs left the knurls behind in the hub hence why they are a smaller diamter, you can barely feel any knurling on them.
11-02-2012, 10:25 PM
#5
so i have a question, i am also changing out my studs (front and back) to acomidate spacers for my Brembo brake upgrade. i was looking at the ARP 12x20x3.5 studs:
http://www.summitracing.com/parts/arp-100-7703
Summit told me that i could just press out my old ones and these will fit right in the stock parts. is this true? i have a stock 10-bolt and stock hubs up front. i will also be using closed style acorn lugnuts (same style as stock).
http://www.summitracing.com/parts/arp-100-7703
Summit told me that i could just press out my old ones and these will fit right in the stock parts. is this true? i have a stock 10-bolt and stock hubs up front. i will also be using closed style acorn lugnuts (same style as stock).
11-02-2012, 11:01 PM
#7
i am gonna go to NAPA tomorrow and pick up a stock 12mm stud and a 1/2 x 20 stud of the same style as the ARP and compare them. i have a stock busted hub laying around here somewhere that i can attempt to press in to it. then i will know if i can go with them.
i just dont want to spend $130+ on 12mm long ARP studs when i can get bigger 1/2" studs for $50, and they are stronger. so if they fit, it is order time. hopefully someone else has gotten these to fit cause i really want to get my new brakes on. they look so sad sitting in the garage on the shelf waiting to be put on.
i just dont want to spend $130+ on 12mm long ARP studs when i can get bigger 1/2" studs for $50, and they are stronger. so if they fit, it is order time. hopefully someone else has gotten these to fit cause i really want to get my new brakes on. they look so sad sitting in the garage on the shelf waiting to be put on.
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11-04-2012, 02:52 PM
#14
Well, the studs and hubs are at the machinist, he'll get them to fit. If need be, he'll open up the holes in the hubs by the slightest amount then press in the studs.
Once I get them back tomorrow, I'll be able to complete the big brake kit and start bleeding the brakes.
Once I get them back tomorrow, I'll be able to complete the big brake kit and start bleeding the brakes.
11-08-2012, 05:36 PM
#19
I know I know... right now I'm trying to get a 4y/o and 5y/o ready for bed after a long work day/week. I was at work at 5am today, worked till 4:30, then worked out afterwards, got home, and have been dealing with kids due to my wife finishing up stuff for her work.
It's tough juggling two careers and two kids and finding time to finish car stuff.
It's tough juggling two careers and two kids and finding time to finish car stuff.
