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Tire Size

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Old 02-27-2011, 06:58 PM
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Default Tire Size

We have a 98 Cherokee Sport, all stock with the 15x7 rims. Can I install 235/75/15 tires without a problem or do I need to stay with the 225/75/15 stock size....
Old 02-27-2011, 07:15 PM
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you should be fine tire wise, but just make sure a larger tire wont rub
Old 02-28-2011, 12:27 AM
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Originally Posted by msark
We have a 98 Cherokee Sport, all stock with the 15x7 rims. Can I install 235/75/15 tires without a problem or do I need to stay with the 225/75/15 stock size....
Had the same setup before I lifted. You'll be fine.
Old 02-28-2011, 01:11 AM
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You will be fine runnin those tires. You may rub a tiny bit with them at full lock though.
Old 02-28-2011, 03:20 AM
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Do it !
Old 02-28-2011, 05:02 AM
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Trim a little and run 31x10.5's...
Old 02-28-2011, 07:11 AM
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No trimming with that tire set up... You are good to go man!
Old 02-28-2011, 09:47 AM
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Originally Posted by msark
We have a 98 Cherokee Sport, all stock with the 15x7 rims. Can I install 235/75/15 tires without a problem or do I need to stay with the 225/75/15 stock size....
If u want the little extra width without the extra height/diameter, consider 235/70/15.
Old 02-28-2011, 11:27 AM
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I have P235/75-R15 tires on my 2000 with stock rims.

No problems with rubbing the wheel well.
Old 02-28-2011, 11:33 AM
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I have a 98 Classic, stock wheels and 235/75/15's. No rubbing at all.
Old 02-28-2011, 12:35 PM
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Originally Posted by msark
We have a 98 Cherokee Sport, all stock with the 15x7 rims. Can I install 235/75/15 tires without a problem or do I need to stay with the 225/75/15 stock size....
235/75/15 equal with 29.1 inch (diameter) and 225/75/15 = 28.5 inch mean you can get good acceleration. But surface contact of your tire will be reduced approximately 0.06 inches (will increase a little bit braking distance).
Old 02-28-2011, 12:51 PM
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Actually (mathematically), 235/75/15 is 28.9" tall and 225/75/15 is 28.3" tall for a difference of .60", not .06". 235 is .39" wider than 225.

Last edited by djb383; 02-28-2011 at 12:53 PM.
Old 02-28-2011, 03:14 PM
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Originally Posted by djb383
Actually (mathematically), 235/75/15 is 28.9" tall and 225/75/15 is 28.3" tall for a difference of .60", not .06". 235 is .39" wider than 225.
Yes, around 0.6" for tire diameter, but am talking about surface contact beetwen tire and road surface....
Old 02-28-2011, 03:22 PM
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Originally Posted by Black Devil
Yes, around 0.6" for tire diameter, but am talking about surface contact beetwen tire and road surface....
Why would contact surface be less with a wider tire? It seems like there would be a larger contact surface. Am I missing something?
Old 02-28-2011, 03:28 PM
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I have 31x10.5s on my stock wheels, but I didn't do an adj track bar after my lift and at full right turns I rub the LCA. I need to get some rims with 3.5-4" BS i believe but it's nothing I can't live with for now. The previous owner put these tires on and I did the lift. When I first got the car they rubbed bad! But I had drastically sagging suspension. I thought the 31s looked too big stock, now they look too small.

I picked up another matching steelie at the JY to use for my full size spare, and it had a 235 on it... not too different from the 31", may be just right. My "31s" measure 29.5" with weight on them and they're a bit worn.

Last edited by 98 XJS; 02-28-2011 at 03:30 PM.


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