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1990 wheel meassurement

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Old Mar 14, 2016 | 09:12 PM
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Default 1990 wheel meassurement

High I was wondering if anyone either know for certain or can properly measure the center of a 1990 corvette wheel. I had some metal caps made up and it appears that the plastic caps don't notice the small difference in size but the metal does lol.

The pics show the type wheel and where I need meassured. Also I have a adapter taped in place in the close up pic.

Any help would be amazing and appreciated. Thx Jeff





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Old Mar 14, 2016 | 09:32 PM
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Originally Posted by 93typhoon
High I was wondering if anyone either know for certain or can properly measure the center of a 1990 corvette wheel. I had some metal caps made up and it appears that the plastic caps don't notice the small difference in size but the metal does lol.

The pics show the type wheel and where I need meassured. Also I have a adapter taped in place in the close up pic.

Any help would be amazing and appreciated. Thx Jeff





Any center cap for an '84 through '90 will fit the wheel in your image.

The finished "pretty face" is 3.0", the "major diameter" of the tabs is 2.490 (63mm) and the "minor diameter" of the tabs is 2.320 (59mm).

I mentioned the 3.0" because that's the dimension that is usually quoted when they're sold.

The '91+ center-cap will NOT fit.

You need 11" for the Syclone/Typhoon - your snapshot is a 9.5". Are the 11" buried or you don't have a set?

I use "blank" plastic caps and have an engraver do the center caps with whatever I like.

Last edited by WVZR-1; Mar 14, 2016 at 09:35 PM.
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Old Mar 14, 2016 | 10:38 PM
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I do have the 11" rears. The problem wasnt with the pretty part it was the internal part. The caps that I have are 2 pieces and they bolt together but apparently the newer zr1's are larger in this spot. So is the minor diameter of the center cap the same as the part on the wheel? Just hoping to only have to get these made one more time if possible. Wish I had the tools and actual know how to properly measure this. Thanks WVZR-1




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