3rd gen tire size

cameron4link · 03-07-2018, 04:58 PM

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 !!

MR DERBY CITY · 03-07-2018, 10:11 PM

Quote:

Originally Posted by cameron4link

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....

Eman · 03-08-2018, 02:59 PM

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.

03-07-2018, 04:58 PM	#1
cameron4link Junior Member Join Date: Oct 2013 Posts: 20 Likes: 0 Liked 3 Times in 3 Posts	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 !!

03-08-2018, 02:59 PM	#3
Eman Member Join Date: May 2014 Location: E TN Posts: 473 Likes: 16 Liked 133 Times in 76 Posts	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.