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Tire Size


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New to the forum and had a question for some of you more experianced MJ owners.  I have a stock MJ and read the thread about the biggest tire that would fit with some rubbing being a 31x10.50x15.. I was going to order some super swampers and got a little worried when I read that super swampers tend to run their true size where as other manufacturers do not.  These are the specific tires I was looking at:

 

 

http://www.4wd.com/Jeep-Tires-Jeep-Tire-Accessories/31x10-5R15LT-IROK-ND.aspx?t_c=13&t_s=536&t_pt=101509&t_pn=SSTIND-06

 

Do you guys think these would fit without a lift if they actually run a true 31"?

 

Thanks in advance..

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Sorry forgot that..planning to just mount on stock wheels from an 88 comanche

31s on factory rims will rub the lower control arms on sharp turns. The cure is to use LCAs from the WJ Grand Cherokee.

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I rub the edges of my flares at full lock sometimes with my 31" BFG AT/KO's. I'm lifted 3", by the way.

What rims? How much backspacing?

15x8 MB Razors. I'll have to check with Discount Tire for the backspacing, but they do stick out past the flares some.

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I rub the edges of my flares at full lock sometimes with my 31" BFG AT/KO's. I'm lifted 3", by the way.

What rims? How much backspacing?

 

15x8 MB Razors. I'll have to check with Discount Tire for the backspacing, but they do stick out past the flares some.

 

Then you will have a problem. 31x10.50s on factory rims fit inside the flares and sheet metal, and rub on the lower control arms. No aftermarket rims have as much backspacing as Jeep factory rims. That means your tires may not rub the lower control arms (which we can live with), but WILL probably smash into the flares and maybe the sheet metal when you turn. In addition, on those rims the tires almost certainly won't tuck up into the fender when the suspension compresses, they'll hit the flares.

 

There's a reason why I have a shed full of factory Jeep rims ...

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If you LIKE the way factory Jeep rims look on a MJ, that would work. I'm fully aware of the shortcomings of running aftermarket wheels on my Jeep. I like the way they look, and havent had to do much more than trim the inner liner and flare on the trailing edge of the fender. I SLIGHTLY rub under full compression and lock. I can live with that. Even if I totally FUBAR my front flares, they're easily replaceable with XJ flares and fenders. Again, not a huge deal to me.

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If you LIKE the way factory Jeep rims look on a MJ, that would work. I'm fully aware of the shortcomings of running aftermarket wheels on my Jeep. I like the way they look, and havent had to do much more than trim the inner liner and flare on the trailing edge of the fender. I SLIGHTLY rub under full compression and lock. I can live with that. Even if I totally FUBAR my front flares, they're easily replaceable with XJ flares and fenders. Again, not a huge deal to me.

Not a big deal to you, but could be a big deal to someone else (like me, for example) -- which is why I took the trouble to point it out before he has the tires mounted and then finds out he has to remove the flares and trim the sheet metal. If that's not a problem for him, at least he'll know what to expect. If it IS a problem for him ... at least he'll know what to expect.

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Sorry, but I gotta disagree, at least with my set up. I havent bent sheet metal or ripped a flare off yet, despite being fully flexed several times and having no sway bars connected. Maybe my 3" coils are giving me more lift than advertised I AM running a 2.5, after all. I have a feeling most XJ coils are built with a heavier, loaded L6 truck in mind vs a stripped out, manny tranny 4 banger truck like mine (yay for base models!).

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I'd like to note that my 31s on stock rims (six spoke steel) rubbed the frame in the back on both sides when flexed or even just over bumps. Haven't seen anybody talk about that. The one non-stock rim I had on there was worse, rubbed more in the back.

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I'd like to note that my 31s on stock rims (six spoke steel) rubbed the frame in the back on both sides when flexed or even just over bumps. Haven't seen anybody talk about that. The one non-stock rim I had on there was worse, rubbed more in the back.

It hasn't been mentioned in this thread, but it has been discussed numerous times in other threads. When I used to wheel the '88 MJ with the 4-inch lift that was a normal occurrence. It didn't hurt anything, just left stripes of black rubber on the inner wheelwells when the suspension got twisted up.

 

It wouldn't be an issue in street driving, and probably not even mild "wheeling" such as fire trails.

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So I also plan on lifting my MJ 5" with rustys suspension kit (Not SOA) and putting 32's on it. From what I'm hearing I will rub a good amount since the 32's would be bigger than 31's. So, should I go with 31's instead? :dunno:

What wheels and which 32's will you be using? Also, do you plan to trim?? I have an XJ on deep wheels and 33's on 5" of lift (Rusty's long arms and RE coils) and it has NO rub anywhere due to the aggressive trimming.
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