Jump to content
Forums Gone... but not forgotten!
Pontiac of the Month

brandyv73's 1968 Firebird

2019 June
of the Month

  • 0
Sign in to follow this  
Bud Sisto

8 lug rim lugnuts


I'm pretty sure there's no thread on this subject so I won't bother scrolling through all of the threads looking for an answer. Doe's anyone here happen to know the thread size for the 66-68 8 lug rim lugs (or lug nuts) ? I think they are 1/2 but not sure. Also, can you use 32 of one king of lug or do you need to buy the set specifically made for 8 lug rims with the reverse thread for one side. Or did GM only do that for the 59-65 8 lug rims. The reason I'm asking is that the set costs $179, but the single lug nuts are $1.15 each A big difference and I hate to find out afterwards that I spent way too much for something. Any help would be greatly appreciated. Bud

Share this post

Link to post
Share on other sites

1 answer to this question

Recommended Posts

  • 1

Hi Bud, welcome to FP.

The original Kelsey-Hayes 8-lug wheels did have LH and RH threads through out the entire production run. The thread size is 1/2 - 20. So if you are staying truly original you would have to buy the dual threaded lug nuts.

That said, you could replace the reverse thread side of the car with new standard wheel studs and buy all the same lugs. However, this option will require some work getting the old studs off the wheel hubs, front and rear.  I Doubt a concurs judge would ever know the difference.

Edited by Frosty

Share this post

Link to post
Share on other sites

Tired of these Ads? Register Today!

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Answer this question...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Sign in to follow this  

Tired of these Ads? Purchase Enhanced Membership today to remove them!
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.