Change wheel studs - A big deal?
02-21-2013, 02:15 PM
#16
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I fit 71 mm studs on the rear of my 964 without hub removal. Yes, hub removal requires new bearings.
Hammer the old ones out and use an impact with an old lug nut to pull the new ones back in. Easy-peasy.
Marc
Hammer the old ones out and use an impact with an old lug nut to pull the new ones back in. Easy-peasy.
Marc
02-21-2013, 04:15 PM
#17
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Your in luck I just happened to pick up the March Issue of Porsche panorama and low and behold an add for Brey-Krause http://www.bkauto.com/category_s/295.htm They claim sizes of 2.5mm, 5mm, 7.5mm 16mm & 20mm. No affiliation.
"How long are the originals"
I measured mine when I changed rotors and front and rear were 52 mm. Next size up is 66mm from what I could find. The question is, for me, anyway, is there enough room-- to remove and then replace with longer ones--behind the hub. I already have four 7 mm spacers and just did not feel comfortable with the steel lug nuts only getting a few turns on the stud.
I measured mine when I changed rotors and front and rear were 52 mm. Next size up is 66mm from what I could find. The question is, for me, anyway, is there enough room-- to remove and then replace with longer ones--behind the hub. I already have four 7 mm spacers and just did not feel comfortable with the steel lug nuts only getting a few turns on the stud.
Any leads on good quality wheel studs to buy?
02-21-2013, 04:33 PM
#18
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"I'm confused. When you say 52mm is that from the hub face to the end of the stud? Or is it the total length of the stud after you've removed it entirely?"
I believe that the studs are measured by total length of the shaft not including the head. Not by how far they stick out of the hub. Could be wrong but that is how I understood it to be.
A 90 mm stud is crazy long like you see on some race cars.
I believe that the studs are measured by total length of the shaft not including the head. Not by how far they stick out of the hub. Could be wrong but that is how I understood it to be.
A 90 mm stud is crazy long like you see on some race cars.
02-21-2013, 07:02 PM
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02-22-2013, 10:47 AM
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If you already have 35mm spacers with studs I would just continue to use those. I have a pair of H&R 15mm with studs I use with some sets of wheels I have and have no issue with them. MY 928GTS comes from the factory with 100+mm studs in the rear and uses a large spacer. Not particularly fond of the design. Porsche went wider using the GT/S4 hubs and didn't want to redesign them for a car they were phasing out. I actually prefer the bolt up spacers in large sizes but that is me.
02-22-2013, 12:03 PM
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Hi Anthony, I appreciate the feedback.
I use two sets of wheels, one for street and one for track. The problem is that my street RUF wheels require 35mm spacers, which I already have with built-in studs. They work great. But my BBS e88 track wheels (which I use without spacers) have centers with deep lug bores that require longer studs than original. So if I replace the original studs with longer ones, I think that might render my existing spacers useless, right?
I use two sets of wheels, one for street and one for track. The problem is that my street RUF wheels require 35mm spacers, which I already have with built-in studs. They work great. But my BBS e88 track wheels (which I use without spacers) have centers with deep lug bores that require longer studs than original. So if I replace the original studs with longer ones, I think that might render my existing spacers useless, right?
02-23-2013, 08:24 AM
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I just measured the thickness of the lug bores, they are about 38mm long. I never measured the standard lug bores but I assume they are around 10mm. Given that delta, I think the recommended new stud length of minimum 80mm makes sense (52+38-10=80). So, even though new 80mm wheel studs in the front seems to not be a big deal, installing them in the rear will mean removing the hub from the car?
02-23-2013, 10:19 AM
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03-23-2013, 10:34 AM
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Does anyone know if the slot that is created by disassembling the parking brake can be used to replace the rear wheel studs? I know it can be done on the older 911s. If this works then there is no need to take the hub off the car also also no need to buy new bearings etc.
TIA
TIA
12-29-2021, 06:02 PM
#26
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Last edited by txhokie4life; 12-29-2021 at 06:14 PM.
