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Broken Wheel Stud too expensive BEWARE

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Old Jan 14, 2025 | 03:43 PM
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Default Broken Wheel Stud too expensive BEWARE

The worlds most expensive lug nut. Over the weekend I attempted to take the drivers wheel off to continue bleeding the brakes. I always us a breaker bar to loosen the lug nuts. Then I use a torque wrench to 140lbs when I replace them. This time one of the studs breaks on removal. I am thinking this should be a simple job to replace the stud. Not so fast kemosabe.

I am 11 months out of warranty. Take it to the dealer. Cost of the lug nut $11.75. Cost of the stud $12.38. Labor to do the job.......take a deep breath.....$555.00. Yes indeed friends and neighbors. The dealership says they had to REMOVE THE HUB ASSEMBLY. Are you kidding me? The next time I am looking at the service manual I am going to check what it says but after paying $555 I am not inclined to pay another $22 to get access to the online manual.
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Old Jan 14, 2025 | 04:04 PM
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wow! what year and model?
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Old Jan 14, 2025 | 07:25 PM
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I doubt it makes any difference for any of the c8s but it is a 2021 z51
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Old Jan 14, 2025 | 09:02 PM
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Front or Rear ?
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Old Jan 14, 2025 | 09:22 PM
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sorry....when I said drivers I should have said drivers rear.
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Old Jan 14, 2025 | 10:16 PM
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I mentioned in another thread as well, but I think one of the best things to do on this issue is to use forged aluminum lug nuts. They are ultimately softer than the lugs themselves, so when it's time for something to break, these lug nuts always lose the fight. I've been attending track events for more than a decade, changed wheels countless times, and never lost ANY wheel stud due to doing this. Aluminum lug nuts get cosmetically damaged in time with power tools, and if you crosstread them, they will be damaged easily as well (by saving your lugs in the process), so I carry a spare, and replace them all about every two years.
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Old Jan 14, 2025 | 11:41 PM
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Got a recommendation as to where you bought your set of lug nuts?
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Old Jan 14, 2025 | 11:51 PM
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I used a set of BONOSS Forged 7075-T6 Aluminum M14x1.5 Lug Nuts for C8 fitment. For C7 or former M12 fitments, I've used American Gorilla racing lug nuts.
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Old Jan 15, 2025 | 11:21 PM
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https://www.bonoss.com/product/bonos...lazer-and-more

M14x1.5 (silver due to chip wear due to track wheels on/off)

I got to ask ya... I'm the opposite... why wouldn't you use a higher quality lug nut like this instead?

https://www.bimmerworld.com/Wheels-T...kaAu-BEALw_wcB

$120 OTD... these are what I use even in my other race car (ND) Miata. On another subject anyone run ARP studs yet and maybe even extended since you're down that path...
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Old Jan 16, 2025 | 04:11 PM
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So I bit the bullet and spent my $22 to access the 2021 Corvette GM repair manual thru acdelcotds. I searched for everything related to rear wheel studs. Apparently it is so obvious how to replace them that the manual writers did see a need to include a section on how to replace a rear wheel stud.

If someone else has access to the repair manual and can find the procedure, please post it here. I am trying to verify that GM really did intent to remove the Hub in order to replace a wheel stud.

thanks

bill
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Old Jan 16, 2025 | 06:23 PM
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A local performance shop told me rear hubs have to be removed to replace studs. I looked at it last time I had the wheels off and I believe them. The spindle obstructs almost all of the hub flange.

The fronts looked to me like they might be possible without removing the hubs. The shop I talked to hadn't done fronts yet.
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Old Jan 16, 2025 | 07:04 PM
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Originally Posted by jpreston
A local performance shop told me rear hubs have to be removed to replace studs. I looked at it last time I had the wheels off and I believe them. The spindle obstructs almost all of the hub flange.

The fronts looked to me like they might be possible without removing the hubs. The shop I talked to hadn't done fronts yet.

thank you. I appreciate the confirmation. Hard to believe but …. What are you going to do.

thanks

bill
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Old Jan 18, 2025 | 01:59 AM
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Originally Posted by Car54
The worlds most expensive lug nut. Over the weekend I attempted to take the drivers wheel off to continue bleeding the brakes. I always us a breaker bar to loosen the lug nuts. Then I use a torque wrench to 140lbs when I replace them. This time one of the studs breaks on removal. I am thinking this should be a simple job to replace the stud. Not so fast kemosabe.

I am 11 months out of warranty. Take it to the dealer. Cost of the lug nut $11.75. Cost of the stud $12.38. Labor to do the job.......take a deep breath.....$555.00. Yes indeed friends and neighbors. The dealership says they had to REMOVE THE HUB ASSEMBLY. Are you kidding me? The next time I am looking at the service manual I am going to check what it says but after paying $555 I am not inclined to pay another $22 to get access to the online manual.
I pulled all my lug nuts to replace them w black lugs. But when I saw the diameter of the studs, I was nervous when I torqued to 140lbs. Ugh
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