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Old 10-07-2011, 03:21 PM   #1
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Need some info on lift kits and tire upgrade for a 2011 sport unlimited

I recently purchased a 2011 sport unlimited. I'm looking to upgrade from the stock p225/75r16 highways tires, to a larger AT tire that's good on and off road (including snow). What is the largest tire I can upgrade to without causing any rubbing issues?

Also, I want to lift it a couple of inches but I'm lost on the advantages of spacers vs a whole lift package.

Any info and recommendations appreciated, I'm trying to learn as much as I can before I start taking it on some trails.

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Old 10-07-2011, 03:26 PM   #2
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I have on my stock unlimited X 285/70R17 however I think the x come higher the the sport, I how I am think of a 4" skyjacker and 35's

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Old 10-07-2011, 06:35 PM   #3
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X's are not higher than Sports. 285's are as big as you can go without lifting. Even then you need new wheels or spacers to accommodate the width of the tires. If you lift it 2.5" you can fit 35's on new wheels. There is a ton of info here about lift/tire sizes for JK's... Even if it isn't always easy to find Spacers are less expensive than springs, and while springs are preferred, spacers are quite functional as a means of lifting the Jeep.
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Old 10-07-2011, 11:45 PM   #4
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Is it true that spacers create a stiffer ride, like going over bumps, on the street. I also read they can cause damage over time.
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Old 10-08-2011, 08:45 AM   #5
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So you can put 285/70/17 on a 2011 Sport without any rubbing or problems.How tall is that tire.THANKS
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Old 10-08-2011, 09:15 AM   #6
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Quote:
Originally Posted by BRADWRANGLER2011
So you can put 285/70/17 on a 2011 Sport without any rubbing or problems.How tall is that tire.THANKS
32.8"
http://www.tirerack.com/tires/tires....tnum=87R7ATAKO
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Old 10-08-2011, 03:16 PM   #7
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Thanks for the info
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Old 10-08-2011, 05:20 PM   #8
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Quote:
Originally Posted by InfernoGirl
X's are not higher than Sports. 285's are as big as you can go without lifting. Even then you need new wheels or spacers to accommodate the width of the tires. If you lift it 2.5" you can fit 35's on new wheels. There is a ton of info here about lift/tire sizes for JK's... Even if it isn't always easy to find Spacers are less expensive than springs, and while springs are preferred, spacers are quite functional as a means of lifting the Jeep.
Cool now I know that but then again I've seen plenty wrangler lower the mine, and mine comes with a spacer.
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Old 10-08-2011, 05:27 PM   #9
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Cool now I know that but then again I've seen plenty wrangler lower the mine, and mine comes with a spacer.
None come with spacers. I imagine you are looking at the spring isolator, they all have those. Some have stiffer springs than others, some have smaller tires. But the spring length/shock length/isolator size is the same on all of them from the factory.
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Old 10-08-2011, 07:03 PM   #10
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Either way I mine is about a 1"1/2 taller then my buddy's

P.S I also have a set of 17" Mickey Thompson's I will posting on the for sale section with images soon. If anybody is interested PM me. I have the same set on my car put in black. The offset on these rims is wider so you will not need spacers for 285/70R17

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