Jim K in PA said:
I have been running 255/85s mounted on Moabs on my '05 LJ with a 1.25" BL and 1" MML for three years. I do not use wheel spacers, or bump stop spacers. There is absolutely NO body/flare contact at all, and have wheeled it plenty. I get very light contact with the stock front sway bar and even lighter contact with my tubular lower control arms. I had not contact with the stock control arms. Tire coverage with the stock flares is perfect. This is with Maxxis BHs and now Cooper STs.
No need to upgrade the suspension for this tire size, unless you want to.
Be very careful stating this as fact. I hate to disagree or ruffle feathers here, but I do NOT agree with this in the slightest. This is/has been my favorite tire size for some time now and I've set them up on many different rigs other than my own, as well as built my current trailer to run them. Keep in mind every Jeep is different and that very well may be the case with your rig, but I can assure you 100% for FACT that this size did NOT work on my rig without suspension changes and wheel spacers. Nor would it have worked on any other rig I have helped out with, with only a BL/BMML if you actually wheel it. Some folks MAY get lucky with their setups and MIGHT get away with it here and there, but do to it right, I'd definitely not bank on that. Then again, I wheel the piss out of my rig and ask it to do more than most. I will not tolerate rubbing flares, suspension parts, swaybars, frame perches-anything. All of which DID rub on my own, or others I've worked on. Good way to ruin a good rig if this occurs.
Again, not trying to be rude here, but I'd hate for some fellow ROF'r to read this and believe it to be gospel, grab a set for their rig then find out they need to spend hundreds of dollars of upgrades to make them work properly-at minimum, all on a poor college budget when they just spent their last dime on the tires and now can't run them.
With any tire change or suspension setup, pull your springs/shocks and cycle everything thoroughly up/down, crossed up every which way you can and determine for yourself whether they'll work on YOUR rig or not, as well as what changes need to be made to make them work properly. A lot of money can avoid being spent if proper research and homework is done first.
Best of Luck,
Mike