Search
Search titles only
By:
Search titles only
By:
Forums
New posts
Search forums
Members
Registered members
Member Map
Current visitors
New profile posts
Search profile posts
What's new
New posts
All posts
Trending
Latest activity
New media
New Events
New review items
New Users & BDays
New User Announcements
Birthday Announcements
New classified ads
New showcase items
New classified comments
New showcase comments
Classifieds
New ads
New comments
Latest content
Latest feedback
Latest questions
Advertiser list
Search classifieds
Media
New media
New comments
Search media
Events
New events
Donate
My CCF
Toolbox
Mailing Lists
My Shop
Reviews
New items
Latest content
Latest reviews
Latest questions
Brands
Search reviews
Showcase
New items
New comments
Latest content
Latest updates
Latest reviews
Author list
Series list
Search showcase
Log in
Register
Search
Search titles only
By:
Search titles only
By:
New posts
Search forums
Members
Registered members
Member Map
Current visitors
New profile posts
Search profile posts
Menu
Install the app
Install
Reply to thread
Corvette
C1 and C2 Forum
Spacer/Lug-nut Issue
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Message
<blockquote data-quote="Jcpstrat" data-source="post: 225715" data-attributes="member: 3034"><p>For those of you who run spacers with your wheels make sure the lug-nuts engage the proper amount of threads on the wheel studs.</p><p></p><p>I came VERY close to loosing the passenger side rear wheel recently. I was about to attend a local Cars & Coffee event but when I backed my Vette out of the garage I heard an odd sound from the rear. As I pulled it back into the garage I heard that same sound. I looked under the car at the rear suspension and nothing looked obviously wrong. I decided not to drive it but as I was closing the garage door I noticed something shiny on the drive way. I found 2 lug-nuts (first pic), each with the wheel studs sheared off. I started walking around my car and found the rear passenger side wheel only had 1 lug-nut left (2nd pic), and 4 studs missing. I torqued all 4 wheels myself with my torque wrench to 75 ft-lbs (67 factory spec), when I installed them. This happened with approx. 1,000 of miles on the wheels.</p><p></p><p> Lugnut/stud pic</p><p>[ATTACH=full]44871[/ATTACH]</p><p> </p><p>Wheel pic</p><p>[ATTACH=full]44872[/ATTACH]</p><p></p><p>It took me a while to figure out what caused the problem. The (4) wheel studs were sheared off flush with the spindle outer surface. The cause was shear stress caused by the lug-nuts only engaging about ¼” of wheel stud threads due to the ¼” spacers I installed.</p><p> </p><p>The tire/wheel/lug-nut vendor I used, ASME and NHRA all recommend that lug nuts should engage a minimum length of threads equal to the diameter of stud. In my case 7/16".</p><p>The vendor I purchased my wheels/tires/lug-nuts from near the end of 2018, while body was still off the frame, acknowledged that when they sent me spacers, to cure a wheel/caliper interference issue, they should have also sent me Extended Thread MAG E/T Tapered lug-nuts & locks to replace the ones they had originally sent with the wheels/tires.</p><p></p><p> Figuring that all the wheel studs have been stressed I've replaced them all. Just a heads up for anyone else running or thinking about running spacers.</p></blockquote><p></p>
[QUOTE="Jcpstrat, post: 225715, member: 3034"] For those of you who run spacers with your wheels make sure the lug-nuts engage the proper amount of threads on the wheel studs. I came VERY close to loosing the passenger side rear wheel recently. I was about to attend a local Cars & Coffee event but when I backed my Vette out of the garage I heard an odd sound from the rear. As I pulled it back into the garage I heard that same sound. I looked under the car at the rear suspension and nothing looked obviously wrong. I decided not to drive it but as I was closing the garage door I noticed something shiny on the drive way. I found 2 lug-nuts (first pic), each with the wheel studs sheared off. I started walking around my car and found the rear passenger side wheel only had 1 lug-nut left (2nd pic), and 4 studs missing. I torqued all 4 wheels myself with my torque wrench to 75 ft-lbs (67 factory spec), when I installed them. This happened with approx. 1,000 of miles on the wheels. Lugnut/stud pic [ATTACH type="full"]44871[/ATTACH] Wheel pic [ATTACH type="full"]44872[/ATTACH] It took me a while to figure out what caused the problem. The (4) wheel studs were sheared off flush with the spindle outer surface. The cause was shear stress caused by the lug-nuts only engaging about ¼” of wheel stud threads due to the ¼” spacers I installed. The tire/wheel/lug-nut vendor I used, ASME and NHRA all recommend that lug nuts should engage a minimum length of threads equal to the diameter of stud. In my case 7/16". The vendor I purchased my wheels/tires/lug-nuts from near the end of 2018, while body was still off the frame, acknowledged that when they sent me spacers, to cure a wheel/caliper interference issue, they should have also sent me Extended Thread MAG E/T Tapered lug-nuts & locks to replace the ones they had originally sent with the wheels/tires. Figuring that all the wheel studs have been stressed I've replaced them all. Just a heads up for anyone else running or thinking about running spacers. [/QUOTE]
Insert quotes…
Verification
Post reply
Corvette
C1 and C2 Forum
Spacer/Lug-nut Issue
Top
Bottom
You're browsing as a
Guest
. Please register to receive all manner of go-faster benefits on CCF. Click
HERE
to login or register.