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Old 05-13-2010, 10:13 PM   #1
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Largest Tire Size

I own a 2009 unlimited and would like to know what would be the largest tire size I can go up to without adding a lift kit?

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Old 05-13-2010, 10:22 PM   #2
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32 will give you plenty of room to flex, its a standard size for the rubicon and such. 33 will fit, but that is where you start to run into rubbing issues and decreased flex.

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Old 05-13-2010, 10:23 PM   #3
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I don't know about an '09, but on my stock 2000 TJ I've got 31X10.50X15 no problem.
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Old 05-13-2010, 10:26 PM   #4
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Quote:
Originally Posted by drivebytruckerz View Post
I don't know about an '09, but on my stock 2000 TJ I've got 31X10.50X15 no problem.
the JKs can fit much larger tires stock. ive head some clever fender trimming will let you run 35s on stock suspension with proper back spacing on the wheels
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Old 05-14-2010, 08:42 AM   #5
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Yea, just like Schnutzy say's, you can get some 32" take offs, from Rubis pretty cheap and they'll bolt right up with no problemo !!


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Originally Posted by 2009JeepUser View Post
I own a 2009 unlimited and would like to know what would be the largest tire size I can go up to without adding a lift kit?
As soon as you start with 33", little troubles showup, depending on the ACTUAL installed size of the tire

Without a lift You start running into fenders, swaybars, bumpers-etc

If you go bigger (35"++) you really start the MOD requirement and larger than that, new Ujoints/axles/shocks-etc

Thinkitout first !!

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Old 05-14-2010, 09:04 AM   #6
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^ I've personally trimmed the heck out of a stock JK to FULLY fit a 33X12.5X17 tire on OEM wheels. It's not pretty. You NEED wheel spacers. A 33X10.5 would have been a much better choice. Then, you'd need MINOR bumper and fender trimming at full flex. Otherwise, going down the road, you'll be fine 99% of the time- Mark W.
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Old 05-14-2010, 07:00 PM   #7
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What about the stock wheels? What can the stock 18"s fit? any way they can fit say a set of 35.12.5x18? In other words say I lifted her plenty but just wanted to keep the stock wheels.
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Old 05-14-2010, 07:18 PM   #8
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I believe the stock wheels with the tire size you want to put on will rub. You need a wheel with correct backspacing to move the tire out a little.
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Old 05-14-2010, 08:06 PM   #9
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^^^ What he said. You gotta have less bs to fit a wider tire....
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Old 05-18-2010, 01:37 PM   #10
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I'm running BFG A/T 285/70/17 (32.8 '' x 11.5") on Procomp 17x9 with 4.75" backspacing and 6mm offset , the suspension is still stock at this point and I have had no problems whatsoever on or off-road .
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Old 05-18-2010, 03:31 PM   #11
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What size rims, it makes a difference.

With stock 16in steel rims 265/75-16 (approx 32in, bigger tires will fit, rims really won't handle them)
With wider 17in rims 285/70-17 (approx 33in)

And you can actually go a little larger if you are not doing any serious wheeling. I have seen 35s work fine (with the right rim backspacing) with no lift on JKs that stay on the pavement.
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Old 10-27-2013, 09:19 PM   #12
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I have a 2010 4dr JK with 1.25" wheel spacers and a leveling kit installed.

Any idea if I can fit 285 70R18 tires on my jeep?
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Old 10-27-2013, 09:22 PM   #13
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Quote:
Originally Posted by bmichigan View Post
I have a 2010 4dr JK with 1.25" wheel spacers and a leveling kit installed.

Any idea if I can fit 285 70R18 tires on my jeep?
Welcome to WF

This is a really old thread....try this one.

http://www.wranglerforum.com/f33/the...it-155488.html

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