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Old 06-14-2010, 04:29 PM   #1
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Biggest Tire on stock wheel

What is the biggest tire that you can put on the 15" stock wheel? I'm not looking for off road, just more height to fill in the wheel well. Thanks

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Old 06-14-2010, 04:42 PM   #2
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You can run a 31x10.5x15 without a lift and and you shouldn't have any rubbing. It will make a big difference in the appearance.

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Old 06-14-2010, 04:50 PM   #3
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Does it make a big difference in the ride and gas mileage?
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Old 06-14-2010, 04:52 PM   #4
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Does it make a big difference in the ride and gas mileage?
ohh yes... if big enough it will also throw off your speedo to.
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Old 06-14-2010, 04:55 PM   #5
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I like the look of the new wranglers and I think they come stock now with bigger tires right?
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Old 06-14-2010, 04:56 PM   #6
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I run 31 10.50 15's The gas mileage is not the best but it does look better!
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Old 06-15-2010, 07:34 AM   #7
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What is the gas mileage difference to go to the 31x10.5x15's? Are we taking from 15 to 10? Is it really that noticable?
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Old 06-15-2010, 07:57 AM   #8
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Everyone here is right. If you get any wider on a stock wheel the tire will arch and wear heavy in the middle ruining your tires early.
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Old 06-15-2010, 08:06 AM   #9
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What is the gas mileage difference to go to the 31x10.5x15's? Are we taking from 15 to 10? Is it really that noticable?
Nope, still sux (gas that is) I haven't noticed a difference in mpg's. What I have noticed is a much smoother and quieter ride with more stability.
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Old 06-15-2010, 08:27 AM   #10
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fwiw 31'' BFG's put my speedo dead on per my GPS, and radar speed signs.

Your mileage won't change significantly w/ 31'' tires.

The ride is what it is. Its dependent more on the tire you choose and the pressure you run than it is the size (all avail. sizes have more than enough sidewall to soften the ride a little)

31'' tires on a stock TJ look 10x better than the reg. OEM size. but only 1/10th as good as 33's.
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Old 06-15-2010, 09:28 AM   #11
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If I get the 31's I think that I would be getting more of an aggressive tire for light off road. I'm assuming that these will ride rougher. When you guys say they "look better" with 31's do you mean the height difference or are you speaking more of the height with the more aggressive style tire?

I guess what I'm getting at is if I can get the better look out of a 31 with a less aggressive traction it might be a better choice as far as comfort.
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Old 06-15-2010, 10:41 AM   #12
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Depends what you mean by an "aggressive tire"

To some the BFG All Terrain TA KO is aggressive, to others its not.
You won't be disappointed with its ride, or noise. If you don't plan on getting into any really sticky mud that tire will serve you well.

31 will improve the looks IMO due to it being larger, and generally more aggressive than a regular "car" tire.
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Old 06-15-2010, 11:09 AM   #13
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If I get the 31's I think that I would be getting more of an aggressive tire for light off road. I'm assuming that these will ride rougher. When you guys say they "look better" with 31's do you mean the height difference or are you speaking more of the height with the more aggressive style tire?

I guess what I'm getting at is if I can get the better look out of a 31 with a less aggressive traction it might be a better choice as far as comfort.
There are lots of aggressive looking A/T tires out there. Best bet is go to a good tire shop and look at the options in person. Buy them where ever you like, but seeing them in person helps. Also look at different tires and sizes on Jeeps around you. I wasn't entirely sold on my Duratracs till I saw my size in the tire store.... It was love at first sight! Ordered them right then and there...
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Old 06-15-2010, 11:25 AM   #14
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Don't just look at the tire if you want an aggressive look. You may want to think about some inexpensive aftermarket wheels with less backspacing. IMO, tires can't be seen as well if they're stuffed up under the flares.
Check "summitracing.com" for some inexpensive wheels. I bought (5) cragar soft 8's with 4" bs, 4 center caps, and new lug nuts for around $270 shipped to my door.
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Old 06-15-2010, 11:35 AM   #15
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if you buy purely on looks remember the knobbier the tire, the noisier it will be. (not 100% true, but if you are buying based on appearances its a safe rule to follow)

I agree w/ Tbone - wheels with less BS will make the Jeep look more aggressive. Sadly no wheels like this exist that look as good as the Canyons (just a personal opinion)
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Old 06-15-2010, 12:46 PM   #16
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WOW Tbone, thanks fot the hint! Do you have a picture of those wheels on your Jeep? That is a great price! What is the stock BS on Jeep wheels?
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Old 06-15-2010, 01:17 PM   #17
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WOW Tbone, thanks fot the hint! Do you have a picture of those wheels on your Jeep? That is a great price! What is the stock BS on Jeep wheels?
I can't post a pic right now, but several jeepers on here have them. The BS on your stock rim is probably 5.5". The less BS, the farther it will push the tire/wheel out from under the flares. 4" suits me just fine with 31x10.5 tires.
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Old 06-15-2010, 01:24 PM   #18
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Yea, that's about a big of tire as I want to get. I'll probably get them. Thanks again!
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Old 06-15-2010, 01:53 PM   #19
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Don't just look at the tire if you want an aggressive look. You may want to think about some inexpensive aftermarket wheels with less backspacing. IMO, tires can't be seen as well if they're stuffed up under the flares.
Check "summitracing.com" for some inexpensive wheels. I bought (5) cragar soft 8's with 4" bs, 4 center caps, and new lug nuts for around $270 shipped to my door.
I did the same thing but bought mine from jegs about 50 bucks cheaper
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Old 06-15-2010, 02:13 PM   #20
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ummm Is a 32 11.50 too much for the stock rim? Just asking i had some put on today and they ride fine but their on 15" rims from a cherokee. Would that make any difference?
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Old 06-15-2010, 03:09 PM   #21
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ummm Is a 32 11.50 too much for the stock rim? Just asking i had some put on today and they ride fine but their on 15" rims from a cherokee. Would that make any difference?
Full turn to the left or right and see if they rub. Take it off-road and down a good trail and see how they hold up.
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Old 06-15-2010, 03:29 PM   #22
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ummm Is a 32 11.50 too much for the stock rim?
Factory wheels have 5.25 to 5.5" of backspacing which is a little too much for an 11.5" wide tire. Where it tends to rub is actually in the rear, between the tire's inside sidewall and the upper rear coil spring mount. Plus the front tires will rub the suspension when you turn the steering wheel hard left or right.

31x10.50 is pretty much the largest recommended tire size for a TJ.
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Old 06-16-2010, 07:02 AM   #23
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ummm Is a 32 11.50 too much for the stock rim? Just asking i had some put on today and they ride fine but their on 15" rims from a cherokee. Would that make any difference?
That's what I have on my Unlimited. I don't have any rubbing issue with the rear, but do on the front at full turn.....

(with 2.25" BB)

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Old 06-16-2010, 09:07 AM   #24
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I bought the 31x 10.5's. They ride great and look better. It even fixed my slight wobble at 55mph!
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Old 06-16-2010, 10:03 AM   #25
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Make sure you retorque them in a hundred miles or so....
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Old 06-16-2010, 03:54 PM   #26
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Factory wheels have 5.25 to 5.5" of backspacing which is a little too much for an 11.5" wide tire. Where it tends to rub is actually in the rear, between the tire's inside sidewall and the upper rear coil spring mount. Plus the front tires will rub the suspension when you turn the steering wheel hard left or right.

31x10.50 is pretty much the largest recommended tire size for a TJ.
Well really the rims are off a Jeep Cherokee and are wider than my stock one...and I drive a YJ not no silly TJ
Edit: I have room for them. Just at a full sharp turn is when they catch my springs.
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Old 06-16-2010, 09:54 PM   #27
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I'm in a similar situation as LonuR1, my current BFG 31's are near bald, i want to replace with the BFG A/T ko with 32's, I also want a "more rugged" look, would running 32's force me to get a 2" body lift? I also want to change the rims, but am unfamiliar with what size i can use? note: I have a 98 TJ sport unlimited with Automatic Trans, and inline 6.
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Old 06-17-2010, 08:08 AM   #28
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note: I have a 98 TJ sport unlimited
'98 Unlimited????
Unlimited's didn't show up until '04
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Old 06-22-2010, 11:56 AM   #29
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44-16-15 Bogger is about the biggest you can fit on them. Because the 54s are for a 20" rim.
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Old 06-22-2010, 01:35 PM   #30
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I'm in a similar situation as LonuR1, my current BFG 31's are near bald, i want to replace with the BFG A/T ko with 32's, I also want a "more rugged" look, would running 32's force me to get a 2" body lift? I also want to change the rims, but am unfamiliar with what size i can use? note: I have a 98 TJ sport unlimited with Automatic Trans, and inline 6.
Don't do a 2" Body lift. Add 2" coil spacers..... Then you can run 32's on your Sport.... Welcome to the forum

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