C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

What size rims?

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Old May 21, 2008 | 02:02 PM
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Default What size rims?

I have an 87 coupe with the Z52 suspension. So does that mean I have the 16X9.5 wheels, or do I have the 16X8.5 Wheels? The tires that are on the car now are size 255/50-16. Thanks.
Where can I find this on my codes, or what is the code for rim size?

Last edited by Whitecloud; May 21, 2008 at 03:00 PM.
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Old May 21, 2008 | 02:47 PM
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If 255's are the stock tire size, then I'm guessin' the wheels are 8.5's.
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Old May 22, 2008 | 02:52 PM
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Pull a wheel off and look at the backside of the flange. On my 86 the size of the rims is cast in the back of the rim on the flange itself. Surprised me that one side was made in Japan and the other side in the US though.
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Old May 22, 2008 | 03:37 PM
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From: DRAYTON VALLEY ALBERTA
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I foget how I found it but my Z52 has 9.5 wheels as per the PW9 in the RPO code I will try to find it.

Last edited by 87stocker; May 22, 2008 at 03:39 PM.
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Old May 22, 2008 | 03:40 PM
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the 9.5 and a 255 50 16 is correct. i thought the z52 used the 9.5s as well.
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Old May 22, 2008 | 03:40 PM
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Its not the one but here you go its similar. http://corvetteactioncenter.com/tech/rpo/8496rpo.html
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Old May 23, 2008 | 02:45 PM
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Originally Posted by 87stocker
Its not the one but here you go its similar. http://corvetteactioncenter.com/tech/rpo/8496rpo.html
Thanks, I just checked my codes and the Z52 package is code PW9, which means it comes with cast aluminum wheels, size 16X9.5.
Awesome post for the codes: 87Stoker, This site rocks.

So what does this mean for my size of rims I need to get does that change anything?
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