ATMironov
Well-Known Member
I went to replace the wheel studs in my new MOG hubs with ARP wheel studs only to find out they don't fit, and wanted to share this info incase someone else was looking.
I ordered part #100-7708 which is listed as GM late Model.
Maybe they will fit factory hubs, but they don't work on either of the MOOG hubs.
#100-7708 have a Knurl Diameter of .509. ARP states the studs should be .006" to .016" larger than the hole in the hubs.
The Rear MOOG hubs #513214 (cobalt front) have a hole diameter of ~.477" so the ARP studs are about twice the maximum diameter
The Front MOOG hub #512285 (cobalt rear) have a hole diameter of ~.549" so the ARP studs are undersized by at least .034"
Looking though the ARP catalog I found other models that should work.
For the Rear MOOG hubs #513214 (cobalt front) I order ARP #100-7712 which has a Knurl Diameter of .485", and the same M12 x 1.5 threads. These are for Civics. Another option would be to re-drill the hubs.
For the Front MOOG hub #512285 (cobalt rear) I ordered #100-7715 which has a Knurl Diameter of .558"and is also M12 x 1.5 threads. These are for a Lexus IS300
My suggestion for anyone who wants to replace the studs, take one out of each hub and actually measure the diameter of the hole then double check it against the ARP catalog.
I ordered part #100-7708 which is listed as GM late Model.
Maybe they will fit factory hubs, but they don't work on either of the MOOG hubs.
#100-7708 have a Knurl Diameter of .509. ARP states the studs should be .006" to .016" larger than the hole in the hubs.
The Rear MOOG hubs #513214 (cobalt front) have a hole diameter of ~.477" so the ARP studs are about twice the maximum diameter
The Front MOOG hub #512285 (cobalt rear) have a hole diameter of ~.549" so the ARP studs are undersized by at least .034"
Looking though the ARP catalog I found other models that should work.
For the Rear MOOG hubs #513214 (cobalt front) I order ARP #100-7712 which has a Knurl Diameter of .485", and the same M12 x 1.5 threads. These are for Civics. Another option would be to re-drill the hubs.
For the Front MOOG hub #512285 (cobalt rear) I ordered #100-7715 which has a Knurl Diameter of .558"and is also M12 x 1.5 threads. These are for a Lexus IS300
My suggestion for anyone who wants to replace the studs, take one out of each hub and actually measure the diameter of the hole then double check it against the ARP catalog.
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