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Old 03-07-2018, 02:58 PM   #1
cameron4link
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Join Date: Oct 2013
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Default 3rd gen tire size

I have a question about tire size on a 85 z28.I was wondering what the biggest slick is that i can run with no modifications to wheel wells or very little ? I am thinking 10' rim The car has a 12 bolt and is a ihra crate car and i don't have rear end width avail sorry !! Will need 10" rim backspace also if someone knows? Thanks in advance !!
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Old 03-07-2018, 08:11 PM   #2
MR DERBY CITY
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Location: Derby City, USA
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Default Re: 3rd gen tire size

Quote:
Originally Posted by cameron4link View Post
I have a question about tire size on a 85 z28.I was wondering what the biggest slick is that i can run with no modifications to wheel wells or very little ? I am thinking 10' rim The car has a 12 bolt and is a ihra crate car and i don't have rear end width avail sorry !! Will need 10" rim backspace also if someone knows? Thanks in advance !!
30 x 9 will fit comfortably if you ROLL the lip of the wheel well opening....
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Old 03-08-2018, 12:59 PM   #3
Eman
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Default Re: 3rd gen tire size

10" might be tough. I had 10x6.5 and since mine is just a bracket car I had to butcher the wheelwells. I had to use spacers with the 6.5 so I tried 5.5 and no way with stock wheel wells. I did use a 10.5" tire so the cross section was big.
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