Most of what has been said is fairly accurate. I've also got an '01, with stock 16x7 wheels. I just took off 255/70's for 265/75's. If you don't trim, you will be in trouble. I'm in the middle of trimming, and TJ rear flare install, as I type. Taking a break before sanding and painting. You will also need wheel spacers, or new wheels with better backspacing. I need the wheel spacers to keep the 255's off the LCA's. One of the reasons I chose the 16's was actually for less sidewall, as this is primary transport, in addition to family trail truck. The less sidewall makes for more predictable handling on road. As you approach 33's, I think there is enough sidewall for wheeling too, and I do intend to air these down a good bit (just had them put on last week, that's why I'm trimming now!). I actually like the more variety of sizes in the 31 to 33 inch range for 16's. I was also thinking of a front brake upgrade, even when I purchased this truck stock. Big tires take their toll on your brakes, and that is not the place to skimp on. My last car, we upgraded front discs to 12.5inch, and fit them inside the stock 16's, so I figured, when I'm ready, I may find a disc upgrade that will fit these wheels also.
Having said all that, I'm not a fan of the wheel spacers, and would rather have 16's with the correct backspacing, but budget doesn't allow right now! Maybe before I'm ready for 285/75's..... The rear does not need spacers with my stock 16x7's, and 265's...atleast not yet!:sunshine: