How will they not? they're curved in, it clears them perfectly.

 

31s? Sure, maybe. Depends on the tire.

But how about a 12" or wider tire? How about 40s?

WJ arms and a sawzall won't clear any tire on stock height as suggested. Just sayin.

 

I never said it would fit ANY size tires. the OP said 31s, i responded to him not the idea that you could fit 54" tires and rockwells under it just with a sawzall and bubble gum.

 

A 10.5" wide tire shouldnt rub if u switch to wj lca's. U have to grind them a little to fit tho. anything wider will still rub, without proper back spacing, or wheel spacers

 

I understand. But you questioned my statement like you didn't understand.

 

Sorry, no I questioned because it looked like you were saying it was untrue for 31s.

 

31s should be fine. That's correct.

Aren't they boxed arms as well?

 

pure ****ing magic. i know that it wont fit any tire it was kind of sarcasm. 33s can fit with proper backspacing and a lack of care and concern for body panels.

 

Or minor trimming and correct bump stops.

 

a 2inch bb with a good amount of trimming and 33s has been done before.
http://www.jpmagazine.com/techarticl...kee/index.html
they also claim to fit 31's with stock suspension using those flares.
the only down side to this is that the trimming is so excessive that you have to relocate a few minor things under the hood.
however do wj arms work on stock xj? if so you could easily fit those 31s you got with some trimming(fender flares as well if u dont like the look of trimmed fenders with no flare) and the wj arms that bend in to prevent rubbing