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Longe Alfetta GTV6 front wheel studs

Posted: Wed Jan 29, 2025 11:25 pm
by Alfaaa1
Hi to all.
Does anyone know where I can get 10 longer front wheel studs.

Current standard ones are 55mm long from under the head to the end of the thread and I need them to be 5 mm longer.(60mm)

Re: Longe Alfetta GTV6 front wheel studs

Posted: Fri Jan 31, 2025 4:27 am
by Davo
Hi Alfaaa1,

Pretty sure you need studs with a 12mm knurl (spline) diameter along with the usual 12 x 1.5 thread. Here is a racing version that looks spot on for the length you want:

https://www.simoniracing.com/en/10-forg ... 2x15-l67mm

You might try the ARP 7712, but the knurl diameter is slightly oversize so you will have to ream out the hole to avoid splitting the disk:

https://www.ebay.com.au/itm/22374101750 ... YOSNn913Cy

Cheers, Davo

Ps: great to hear you have the replacement engine in and running đŸ˜€

Re: Longe Alfetta GTV6 front wheel studs

Posted: Fri Jan 31, 2025 10:06 am
by Alfaaa1
Thank you Davo, Thank you for your help. :)

Re: Longe Alfetta GTV6 front wheel studs

Posted: Fri Jan 31, 2025 1:35 pm
by Alfaaa1
Hi Davo,
on the studs https://www.ebay.com.au/itm/22374101750 ... YOSNn913Cy,

Do you know the size of the ream or drill bit to use.


Regards

Re: Longe Alfetta GTV6 front wheel studs

Posted: Fri Jan 31, 2025 1:50 pm
by Davo
ARP lists the target hole for these as 0.469 to 0.479 inches

Expect a 0.480inch reamer will be the size to use and still have some material for the splines to fit firmly?

Those studs are also a touch longer than your 60mm target but you can always cut them down a touch if needed…

Cheers

Re: Longe Alfetta GTV6 front wheel studs

Posted: Fri Jan 31, 2025 1:55 pm
by Davo

Re: Longe Alfetta GTV6 front wheel studs

Posted: Fri Jan 31, 2025 3:49 pm
by Alfaaa1
Thankyou Davo