996 Turbo / GT2 Turbo discussion on previous model 2000-2005 Porsche 911 Twin Turbo and 911 GT2.

FYI - Front spindle threads for lug bolts

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Old Feb 24, 2016 | 07:04 PM
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FYI - Front spindle threads for lug bolts

Hi guys,

I took my front wheels off the other day to rebalance them and one of my lug bolts was really tight while loosening all the way out.I got it out and the first four threads were nearly gone! Very weird. I never use impacts and put them on myself the last time I had them off - 6 months maybe. I have stainless heavy duty bolts. It was only the one bolt.
Anyways I took my front rotor off to inspect the threads in the spindle. Bad news the first few threads were shiny and appeared damaged. I tried a new bolt and no go.
I found a tap sized the same as our lugs - M14 x 1.5 Metric. I cleaned the threads really well and oiled with PB Blaster. I carefully aligned tap and used a #6 wrench which helped keep the large tap aligned. Threaded it through while backing off a half turn with every forward turn to clear debris. All good! I was lucky and glad I didn't have to pull my spindle to go in from the back side.

Cheers!
 
Old Feb 24, 2016 | 09:23 PM
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Always use an anti seize compound with stainless fasteners. Generally they are only grade 2 at best, your stock bolts are most like grade 8, much tougher and stronger tensile strength. Stainless has its place which is generally corrosion resistance with very moderate to low holding ability. Stainless is also mainly used for very low torque applications as the bolts and nuts will stretch easily resulting in galling or deformation. This often results in thread damage to the parent metal and destruction of the fastener which you may have experienced.

If indeed your lug bolts are stainless, I'd get rid of them before you end up trashing a hub. I don't think they can repeatedly handle the 95 ft lbs or whatever the correct torque is without stretching and causing the issues described above.
 
Old Feb 25, 2016 | 06:07 AM
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Great advice! I got the stainless bolts for cosmetic reasons as the stock lugs look terrible! I have nice Iforged wheels
 
Old Feb 25, 2016 | 06:00 PM
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There are a number of titanium bolts out there that are Reasonable in cost. Stronger lighter and corrosion resistant. Since I was 16 I have always used anti seize on lug nuts / bolts. Never had a problem with galling or getting them loose or them loosen up themselves.
 
Old Feb 25, 2016 | 08:49 PM
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Thanks r6 I may go that route but from what I have found after my initial post response and Internet research is that stainless is not the way to go for sure. I will be going back to oem until I decide if titanium a are worth it. Thanks guys!!
 
Old Feb 25, 2016 | 10:40 PM
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these aren't much more than stock:

http://www.acerracing.com/ball_beari...-1701-128.html

i bought a set and they have been great so far:
https://www.6speedonline.com/forums/...nium-lugs.html

I think these guys are forum sponsors:
http://www.world-motorsports.com/por...-bolt-set.html
 
Old Feb 27, 2016 | 12:06 PM
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Thanks this is the ticket!
 
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