C3 Tech/Performance V8 Technical Info, Internal Engine, External Engine, Basic Tech and Maintenance for the C3 Corvette
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Old Jan 27, 2025 | 07:47 PM
  #21  
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Any chance they are unilug wheels with tapered nuts? That would explain it all. Send a picture of a lug hole and the nut. If the hole in the wheel is oval shaped you need a nut with flat sides.
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Old Jan 28, 2025 | 04:54 PM
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This a bit of a long shot but.
On my AR TT 2S wheels that I'm running on my 80 Camaro with a C5 front bake conversion. When I bolted on the wheels for the first time it didn't seem like the standard conical seat lug nuts had a lot of lug engagement. So I contacted the C5 brake supplier. The name of the company is Custom Works.com located in northern CA. He sold new me lug nuts that have a short extension on the conical seat that allows for 3/8"? more thread engagement on the lug bolt.
I'm sure you can get them anywhere like Summit. But Custom Works knew what exactly what I needed and they weren't expensive.
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Old Jan 28, 2025 | 09:25 PM
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It sure would be nice if the OP updated with some photos. Even if he found a solution, documenting it here helps other Forum users.

YJ8 and N90 (OEM aluminum) wheels also use mag type lugs. They are also hub-centric when used on C3s. Since there is no cone on the lugs to center anything, I'm fairly convinced that this style of wheel requires a hub centric spacer to mount correctly (once tightened correctly, the spacer is no longer needed).
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Old Jan 29, 2025 | 01:47 PM
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I've not seen it mentioned so far, but it may also be time for new lugnuts if you're not sure of their use/age, and if the studs are original it is time to replace them for sure. (49 years - they've done their duty)
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Old Jan 30, 2025 | 06:36 AM
  #25  
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Originally Posted by Bikespace
It sure would be nice if the OP updated with some photos. Even if he found a solution, documenting it here helps other Forum users.

YJ8 and N90 (OEM aluminum) wheels also use mag type lugs. They are also hub-centric when used on C3s. Since there is no cone on the lugs to center anything, I'm fairly convinced that this style of wheel requires a hub centric spacer to mount correctly (once tightened correctly, the spacer is no longer needed).
I'm sorry I haven't followed up. I had to go away for a couple of days. I'll take photos and post them first thing tomorrow morning.
Thanks to everybody for their help.
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Old Jan 30, 2025 | 08:28 AM
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The hub on a c3 is not machined it.is a rough casting it was not hub centric. It's nonsense!
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Old Jan 30, 2025 | 10:13 AM
  #27  
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Originally Posted by 7t9l82
The hub on a c3 is not machined it.is a rough casting it was not hub centric. It's nonsense!
Prove it. I've documented my position that OE Rally wheels are.
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Old Jan 30, 2025 | 10:24 AM
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You haven't proven anything. You made assumptions.
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Old Jan 30, 2025 | 10:32 AM
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That is YOUR opinion. And you are wrong. I've provided proof of my position. So, I'll say it once again. Prove it.
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Old Feb 1, 2025 | 02:03 AM
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Originally Posted by hdeyong
I'm sorry I haven't followed up. I had to go away for a couple of days. I'll take photos and post them first thing tomorrow morning.
Thanks to everybody for their help.
Thanks everybody for all your help over the last 5 years.
I'm ending my membership today.
Good bye.
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Old Feb 2, 2025 | 03:28 PM
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Originally Posted by hdeyong
Thanks everybody for all your help over the last 5 years.
I'm ending my membership today.
Good bye.
I've never heard of anyone actually voluntarily ending his membership before.
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Old Feb 2, 2025 | 04:29 PM
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Oh sure come here use us and then toss us aside, I've heard that before 😂
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Old Feb 3, 2025 | 12:57 AM
  #33  
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Originally Posted by hdeyong
I'm sorry I haven't followed up. I had to go away for a couple of days. I'll take photos and post them first thing tomorrow morning.
Thanks to everybody for their help.
So we're not getting these photos, are we?

Oh well.
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Old Feb 5, 2025 | 12:21 AM
  #34  
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I much prefer an ending where the repair is found and we learn what the fix was!
(this always helps others seeking a fix for a similar, or same, issue)
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Old Feb 6, 2025 | 10:59 AM
  #35  
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Originally Posted by hdeyong
Thanks everybody for all your help over the last 5 years.
I'm ending my membership today.
Good bye.
Originally Posted by BKbroiler
I've never heard of anyone actually voluntarily ending his membership before.
Originally Posted by 7t9l82
Oh sure come here use us and then toss us aside, I've heard that before 😂
.
Its a FRENCH thing,,
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Old Feb 6, 2025 | 11:19 AM
  #36  
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Did he get a refund?
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