wheel centering rings again
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 1,036
Likes: 2
From: Huntingburg Indiana
wheel centering rings again
I posted a few weeks ago about getting wheel centering rings. Can anyone help me figure what size I need? They are sold in metric sizes. I have all kinds of precision measuring tools, but none in metric. What is the standard hub size on our cars? Is anyone running vintage americans, especially 200s? What is the hub size on yours? Thanks again. Not sure why they measure in metric. Isn't thousandths of an inch pretty precise?
Thread Starter
Burning Brakes
Joined: Mar 2006
Posts: 1,036
Likes: 2
From: Huntingburg Indiana
The wheels do not center on the hub like the factory wheels do. The wheel hub opening is bigger for a universal fit. This can be a cause of vibration. My wheels use the shank type nuts, and after 40 years of rotating tires the holes are worn some. I'm just trying to eliminate any problems.
Burning Brakes
Joined: Sep 2009
Posts: 1,003
Likes: 48
From: hickory NC
C4 of Year Finalist (appearance mods) 2019
2017 C4 of Year Finalist
If you measure your hub center with the calipers, you can convert the result by 25.4.
Ex. Say it measures 2.25 inches..2.25x25.4=57.15
Ex. Say it measures 2.25 inches..2.25x25.4=57.15
Drifting
Joined: Jul 2008
Posts: 1,483
Likes: 459
From: Lititz PA
The use of dial or digital calipers is notoriously inaccurate. It takes some skill and experience to get it right, and even then it's only good to plus or minus a couple of thousands. If you want a precision measurement of the hub, then I suggest you use a micrometer.
John
John
Corvette Stories
The Best of Corvette for Corvette Enthusiasts
Top 10 Most Expensive Corvettes Ever Sold on Bring A Trailer
Brett Foote
10 Things Every Corvette Owner Needs (2026 Edition)
Michael S. Palmer
8 Most "Only Corvette Owners Understand" Quirks and Problems
Pouria Savadkouei
10 Reasons the C6 Z06 is Still A Performance Benchmark After 20 Years
Joe Kucinski
How Much Horsepower Every Corvette Engine "LOST" in 1972
Joe Kucinski
Top 10 DOs and DON'Ts for Protecting Your Convertible Top!
Michael S. Palmer
Top 10 Most Explosive Corvettes Ever Made: Power-to-Weight Ratio Ranked!
Joe Kucinski
150 hp to 1,250 hp: Every Corvette Generation Compared by the Specs That Matter
Joe Kucinski
8 Coolest Corvette Pace Cars (and Replicas) of All Time
Verdad Gallardo
Melting Slicks
Joined: Jan 2004
Posts: 3,247
Likes: 210
From: Detroit MI
The centering ring i.d. should be 70.6mm. You'll need to measure the i.d. of your wheel hub bore to know what size o.d. centering ring to order. I ordered centering rings last year from motorsport-tech.com.
