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Old 01-14-2013, 02:49 PM   #481
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can you run a 37s on stock Jk wheels with out any problems

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Old 01-14-2013, 03:00 PM   #482
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Quote:
Originally Posted by YJROY1
can you run a 37s on stock Jk wheels with out any problems
No. You'd need wheel spacers and a lift.

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Old 01-16-2013, 07:07 PM   #483
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Quote:
Originally Posted by 1manWolfpack View Post
Please post some photos when you get these. Are you using the stock Sahara wheels? Have read that spacers are not needed for this set-up, but wanted to know what you decided to go with. Thanks!

I tried to upload pics, but I don't know how to compress them for the forum to upload them. I'm using my stock Sahara wheels without lift or spacers. I did get some rubbing against the sway bar which was cured by two 3/8" lock washers on the right wheel stop(for left turn limiting) and one on the other wheel. I also had to put a couple of fender washers on the spare carrier.
They look good to me.
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Old 01-16-2013, 07:13 PM   #484
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I have a quick question about tire and rim selection. I'm looking at Level 8 Strike 5's 17x9. Looks like a 4.25" backspacing. Looking to run Duratracs in LT285/70R17. I need to keep the tire under the fender due to local laws but want a 33" tire. Does anyone know if this setup would have them sticking out past the fender? If I did the numbers correctly they are 32.71" Diameter and 11.2" width. Not too much bigger than stock but the 4.25" backspacing is throwing me off. Thanks for the help.
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Old 01-16-2013, 09:26 PM   #485
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factory backspacing is 7 in. IIRC
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Old 01-16-2013, 09:46 PM   #486
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Ok I'll do some measuring tomorrow when the suns up. Thanks for that.
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Old 01-17-2013, 02:21 PM   #487
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Hey,Quick question I just bought a new 2013 JKU Sport S..I'm new with jeeps and want 2 buy wheels/tires..I have been lookin everywhere on this forum and called a couple of dealers and still can't really get a straight answer...would anyone kno if the 18"x9" XD Rockstars w/ with 5.00 backspacing and 0 offset w/ 275/65/18 Goodyear Duratrac tires fit my Jeep? With no rubbing or issues..I do not plan on lifting because my dealer i guess has told me it will void my warranty...some people have said I will be ok with this setup but then others say the backspacing is too much..idk..thanks for any help
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Old 01-18-2013, 04:05 PM   #488
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This thread is great!

My preferred tire to use is a 275 70 18. Based on this thread it looks like I might be able to run that on my stock wheels with no trouble, or minimal trouble. When I wear out my original tires I'll plan on rolling with 275 70 18s and hope I won't have any issues. By that time, I should have a leveling kit on as well.
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Old 01-19-2013, 02:14 PM   #489
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Quick question, what is the widest tire that will still work with the stock 17" alloy rims? I want to keep them 32" or possibly go up to 33". I want to get spacers either way. I would like to go up to a 12.5",but I don't know if the rim is wide enough.

Thanks M
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Old 01-19-2013, 07:12 PM   #490
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Quote:
Originally Posted by 1manWolfpack View Post
Please post some photos when you get these. Are you using the stock Sahara wheels? Have read that spacers are not needed for this set-up, but wanted to know what you decided to go with. Thanks!

Hopefully the pics show up on the thread now.
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Old 01-19-2013, 10:24 PM   #491
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Quote:
Originally Posted by richj

Hopefully the pics show up on the thread now.
Looks great! Thanks for posting and the updates
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Old 01-21-2013, 02:09 AM   #492
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hi all.

Because I'm too stupid ta figure out what size tires to buy, I'm just going to ask.

What are the largest BFGoodrich All-Terrain T/A KOs that can fit on my stock 2013 JK Sport S?

thanks in advance for any help. i love the site.
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Old 01-21-2013, 06:35 AM   #493
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Quote:
Originally Posted by Fallooza
hi all.

Because I'm too stupid ta figure out what size tires to buy, I'm just going to ask.

What are the largest BFGoodrich All-Terrain T/A KOs that can fit on my stock 2013 JK Sport S?

thanks in advance for any help. i love the site.
From the first post:

Quote:
Originally Posted by 4fit
On Stock Wheels
The largest tire you can fit without a chance of problems on road is a 33x10 tire (also called a “pizza cutter”). An example is the 255/80/17 BFG KM2. Because this tire is the same width as most stock JK tires, there is no issue on road, despite the larger diameter. You can run this size without issue.

Now, let’s consider some tires that could potentially cause slight issues on road; the 33x11s. The common sizes of these would be 285/75/16, 285/70/17, and 275/70/18.
If you don't want a lift or new wheels, there's your answer.
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Old 01-21-2013, 11:01 AM   #494
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Quote:
Originally Posted by MTH View Post
From the first post:



If you don't want a lift or new wheels, there's your answer.
k. let me be more clear. its not that i didnt read the thread or try to figure it out myself. the tire size number are confusing for me. as i stated before, im stupid.

BFGoodrich All-Terrain T/A KOs 255/80/17 dont exist.

what size BFGoodrich All-Terrain T/A KOs are 33x10?

i am not a smart man, that is why i am here askin more intelligent people for help.

thanks again
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Old 01-21-2013, 11:28 AM   #495
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Quote:
Originally Posted by Fallooza

k. let me be more clear. its not that i didnt read the thread or try to figure it out myself. the tire size number are confusing for me. as i stated before, im stupid.

BFGoodrich All-Terrain T/A KOs 255/80/17 dont exist.

what size BFGoodrich All-Terrain T/A KOs are 33x10?

i am not a smart man, that is why i am here askin more intelligent people for help.

thanks again
I don't have BFG's sizes committed to memory, but you can do this.

Use google to being up a good tire website, like discount tire or tire rack to see what sizes are offered.

Then start running those sizes through a simple online converter, like this one: http://www.extremeterrain.com/wrangl...alculator.html

That'll hone you in on what's offered that's close to 33x10.
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Old 01-21-2013, 03:54 PM   #496
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Quote:
Originally Posted by Fallooza View Post
k. let me be more clear. its not that i didnt read the thread or try to figure it out myself. the tire size number are confusing for me. as i stated before, im stupid.

BFGoodrich All-Terrain T/A KOs 255/80/17 dont exist.

what size BFGoodrich All-Terrain T/A KOs are 33x10?

i am not a smart man, that is why i am here askin more intelligent people for help.

thanks again
If you'd like to have a better understanding of the tire size numbers, try this:


The stock 255/75-17 is a 32.1" tire.

Here's how that measurement is calculated:

255 is a millimeter measurement for the width of the tire = 10.0394"

75 is the percentage of that width to get the sidewall height = 191.2500 mm = 7.5"

To get the height of that tire, you add the diameter of the wheel (17") and twice the sidewall (7.5" from tread to wheel, + 7.5" from wheel to tread).

17" = 15" = 32"

The stock 17" tires are 32" x 10" for all intents and purposes, and you are trying to fit the largest tire on the stock wheels.

In reality, for THAT SPECIFIC TIRE, you could probably get the 275/70-17, but it's not really bigger, just a little wider. Plus its load range is E so the ride would be a bit harsh.

If you truly wanted something taller, you could get the 255/80-17 KM2 which specs out to a 33" x 10" tire. It's the same width as the stock tires, but adds 1 inch of height.
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Old 01-21-2013, 06:22 PM   #497
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Larger tires on JK

I wanted to share with you what I have learned about tires on the 2 door JK. I have a Sport with 255/75/17's the Jeep has a tow package and a hard top. The springs are 14/56. I took a set of springs and shocks off a four door JKU. 19/59's and installed them on the sport. I gained about 1 1/2. I added recovery gear and tools and a Hi Lift to the rear of the vehicle along with a winch to the OEM bumper modified to a stubby. I lost around a half inch in height. I went to 285/70/17 32.70 Goodyear Duratracs and the had a light rub at full turn under compression. I added a 1.5 inch spacer and now have no issues. I plan on buying AEV wheels and removing the spacers next year. If you don't want to add spacers 265 is about as wide as you want to go. And 80 would push it for height. Just my experience to date
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Old 01-21-2013, 06:30 PM   #498
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I'm running those same tires on stock rims with 1.5 Inch spacer and mine stick out about an Inch from the fender. I would guess the 4.25 offset would push it out at least that far if not a little further. I will probably go back to the 255/75/17 when I wear these out.
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Old 01-23-2013, 03:19 AM   #499
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Quote:
Originally Posted by mgola27 View Post
If you'd like to have a better understanding of the tire size numbers, try this:


The stock 255/75-17 is a 32.1" tire.

Here's how that measurement is calculated:

255 is a millimeter measurement for the width of the tire = 10.0394"

75 is the percentage of that width to get the sidewall height = 191.2500 mm = 7.5"

To get the height of that tire, you add the diameter of the wheel (17") and twice the sidewall (7.5" from tread to wheel, + 7.5" from wheel to tread).

17" = 15" = 32"

The stock 17" tires are 32" x 10" for all intents and purposes, and you are trying to fit the largest tire on the stock wheels.

In reality, for THAT SPECIFIC TIRE, you could probably get the 275/70-17, but it's not really bigger, just a little wider. Plus its load range is E so the ride would be a bit harsh.

If you truly wanted something taller, you could get the 255/80-17 KM2 which specs out to a 33" x 10" tire. It's the same width as the stock tires, but adds 1 inch of height.
thanks.
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Old 01-23-2013, 07:52 PM   #500
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Originally Posted by lee indy View Post
go with a skinnier wheel. the 17x9 is good for a 12.5 wide but 11.5 wide you wont be able to air down and thell look funny. i run 8,5 in wide on mine.
Lee,

I have a friend of thinking of 35 x 12.5 on stock wheels with a 2.5" lift. He wants it to look good to take to Moab but also uses it mostly as a daily driver. What would you recommend? If he goes 35" will he need to change rear tire bracket and other stuff? He likes my Jeep but I run 285x75x17s with a 2.5" Tereflex. Can you give some advice?
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Old 01-25-2013, 06:42 PM   #501
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Ok after hours of reading most of the post I have decided on the following wheels Pro Comp 7069 16x8 4 BS
http://www.quadratec.com/products/92819_2902_07.htm
With these tires Goodyear Duratrac LT305-70R16
http://www.quadratec.com/products/92607_11XX_A_PG.htm
For daily driving with no lift what do you think then later I will add a Teraflex Leveling Kit http://www.quadratec.com/products/16190_1100_07.htm
2008 JK Unlimited 4DR. No lift
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Old 01-25-2013, 10:57 PM   #502
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I myself am lookin for info on what size tires I can run on stock jku no lift without rubbing. Little help please would like 33s.
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Old 01-25-2013, 11:20 PM   #503
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I want 33s on my 2012 jku rubicon. No lift. Does anyone have that setup & any rubbing issues. Exactly what size works.
Thanks for the help.
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Old 01-25-2013, 11:31 PM   #504
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No lift, 33/12.5 w 4.5 back space same wheel you mention , I think? No rubbing , but they haven't been stuffed , but probably will if you try hard enough.
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Old 01-26-2013, 02:04 PM   #505
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Do wheels come with the correct backspace or do I need to buy spacers?
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Old 01-26-2013, 05:21 PM   #506
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Quote:
Originally Posted by Big Black Rubi
Do wheels come with the correct backspace or do I need to buy spacers?
With the correct wheel backspace , you don't néed spacers. I have a 2013 JKu w 33in / 12.5 / 17 Mickey Thompson MTZ tire. No rubbing as a daily driver . But I didn't do any wheeling . My wheels are Pro Comp 7032 17 / 12.5 with 4.5 back space
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Old 01-26-2013, 05:44 PM   #507
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Quote:
Originally Posted by Big Black Rubi
Do wheels come with the correct backspace or do I need to buy spacers?
Wheels have different backspace. Search on here and you can find out the minimum, 4.5 I think. Than find a wheel you like with minimum and you should be good.
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Old 01-27-2013, 03:24 AM   #508
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Originally Posted by YJROY1 View Post
can you run a 37s on stock Jk wheels with out any problems
I'm not going to guarantee it because I'm not running it, but if you have spacers, the guys at Metal Cloak claim you can run 37's on an unlifted JK if you are running their fenders. Of course by the time you buy those, you could have a lift and/or new wheels or both
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Old 01-27-2013, 04:20 AM   #509
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Re: Largest tire on stock JK? Here's your answer!

I ran 35, x12.5, 15 by km2 on 15x10 procomp wheels, on my stock 2011 jk sport, for 6 months, they rubbed on the encaps of my front plastic bumper, easy fix, grabbed my saws all and cut them off problem solved, of course when I wheeled and flexed, they did rub all over, 15x10 wheels do not need spacers plus the tires are cheaper I think the 15in km2s are about 240 a piece. Pic below has my current set-up after a 3.5 lift + a 2 in spacer.
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Old 02-02-2013, 11:02 AM   #510
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So after reading this tread it sounds like I should put a leveling kit/lift kit on first, then look a tires. This will allow me to put a larger then stock tire (255/75/r17) on giving the beefier look but not go crazy on lift.

I have looked at the teraflex leveling kit and thinking of adding the performance spring portion. This will allow me to stay stock on shocks etc. get some lift to allow for clearance of a larger tire down the road.

1) What will this do for the ride?

2) One reply mentioned that this will void the dealer warranty, any comments?

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