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Old 01-24-2013, 06:00 PM   #1
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What size tires?

So I just installed the BW flat flairs and realized that the 31s look small. My question is what is the best size tire to run with them the rest is a stock setup no lift at least not for some time. I was thinking 33x12.5 but will it fit 35x12.5 without rubbing issues?

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Old 01-24-2013, 06:04 PM   #2
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Forgot to mention its a 2012 sport 2dr

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Old 01-24-2013, 06:07 PM   #3
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I believe with flat flares you ought to be able to run a 35". You'll likely have to trim the pinch seam and air dam a little bit. The bigger issue you might have, though, is the backspacing on your current wheels. What size are they?

also, here's a thread with some helpful information regarding your questions: Largest tire on stock JK? Here's your answer!
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Old 01-24-2013, 06:27 PM   #4
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I forget how much back spacing there is I think it's about 5inch. If I remember correctly from when I bought them.
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Old 01-24-2013, 07:23 PM   #5
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You have a few options.

If you want to keep your current wheels:
you can go ahead and buy tires and see if you have any rub when turning the wheel. I expect you will, but you won't know till you try. If you do find you rub when turning the wheel, the cheapest solution would be to add washers to your steering stops, effectively limiting how far you can turn the wheel one direction or the other. Another solution would be to buy wheel spacers, which will push your wheels out and away from the hub about an 1.5", which will put you in the clear.

If you think you might want new wheels:
You can also buy new wheels that have less backspacing and have your new tires mounted on those. The same size tires are cheaper for smaller wheels.

You may also find that your tires, when turning, rub your front bumper if you still have the stocker. Possible solutions: a little lift up front, or trim the front bumper, or install a new front bumper.

Once you get new tires, check your flex, you might need longer bumpstops as well to prevent your tire from going through your flares.
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Old 01-24-2013, 07:29 PM   #6
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Ok that sounds to close ill probably just go with 33s to be safe until I lift it.
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Old 01-24-2013, 07:33 PM   #7
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I'll also throw this out there, if you think you might want 35's, you should just go ahead and get them. You don't want to have to buy tires a second time when in 6 mos you realize you can swing 35's but didn't get them the first time. Just food for thought.
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Old 01-24-2013, 10:44 PM   #8
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Yea I know but I don't want to get 35s then when I get the new bumper have it weigh down the front end. It'll be to close right now. And I asked the dealership locally and they told me if I do any lift other than the factory ill void my warranty so that's out of the question. Lol fucking stealerships these days are idiots.
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Old 01-24-2013, 10:50 PM   #9
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Run 35's but cost is high..
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Old 01-24-2013, 10:52 PM   #10
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Quote:
Originally Posted by AsimpsonJk View Post
Yea I know but I don't want to get 35s then when I get the new bumper have it weigh down the front end. It'll be to close right now. And I asked the dealership locally and they told me if I do any lift other than the factory ill void my warranty so that's out of the question. Lol fawking stealerships these days are idiots.
LOL bologna, I say!

First of all, a lift does not void your warranty, your new components simply aren't covered by jeep. Also, if any factory components break as a direct result of the lift (say you put a 5" lift on and your driveshaft snaps), then that won't be covered (though, sometimes people get lucky).

Secondly, even if a dealership puts a lift on, that lift is not covered by your factory warranty, it's treated the same as if you had put the lift on yourself. The factory warranty only covers the jeep as it was when it rolled off the factory floor. Perhaps the individual dealerhip will warranty a lift it does itself, but jeep will not.

Don't let those fools scare you
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Old 01-24-2013, 10:57 PM   #11
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Quote:
Originally Posted by jkralph

lol bologna, i say!

First of all, a lift does not void your warranty, your new components simply aren't covered by jeep. Also, if any factory components break as a direct result of the lift (say you but a 5" lift on and your driveshaft snaps), then that won't be covered (though, sometimes people get lucky).

Secondly, even if a dealership puts a lift on, that lift is not covered by your factory warranty, it's treated the same as if you had put the lift on yourself. The factory warranty only covers the jeep as it was when it rolled off the factory floor. Perhaps the individual dealerhip with warranty a lift it does itself, but jeep will not.

Don't let those fools scare you
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Old 01-24-2013, 10:59 PM   #12
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How about 285/75R17's? It comes out to roughly 33.8x11.2.. If mounted on stock rims they only rub at full turn, but can be fixed by wheel spacers, adjusting your steering stops, or aftermarket rims. I have that size in Toyo Open Country A/T II and they're awesome.

Now somebody please correct me if I'm wrong, buteven if you use Mopar Lift, it is considered Aftermarket because that isn't how the Jeep left the factory. Lifting won't void your warranty completely, it just means any suspension problems, or problems that are proven to be caused by the lift won't be covered. But say you start having ticking engine/leaky top/whatever it is still covered because the change in suspension had nothing to do with it.

Edit to add: Looks like somebody beat me to it!
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Old 01-25-2013, 12:23 AM   #13
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Thanks for all the info guys ill probably just go with what Connorcrush suggested that way I'm in the middle of the 2 sizes. But I have 18inch wheels what would the tire size for the 34x12.5 on 18s?

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