According to TireSize.com:
Quote:
265/60R18 tires have a diameter of 30.5", a section width of 10.4", and a wheel diameter of 18". The circumference is 95.8" and they have 661 revolutions per mile.
Generally they are approved to be mounted on 7.5-9.5" wide wheels.
2 things...
Lift: If you actually got 2.5” of Lift you can fit 30.5” diameter tires. You may have some minor rubbing on the pinch welds. If so, follow these directions to pound them over. (Do NOT cut them off.)
http://www.jeepkj.com/forum/f202/how-pound-pinch-welds-stop-fender-rubbing-34295/Only problem is, with the RC Lift the springs may sag within the next year or two and you may get additional rubbing. I that happens, upgrade to an OME or JBA full spring lift. It will perform much better.
Tire Size: 265/60r18 is a 30.5 inch tire, which is the maximum diameter you can run without regearing your differentials to 4.10 or 4.56 (stock is 3.73). You will notice a loss of power and gas mileage with this size. In terms of width, the stock rims are not wide enough at 7” (at least on the 16” rims... check your 18” rim width.) An 8” wide rim with 5” of backspacing would probably be enough to run those tires, but if you don’t want the additional expense of new rims, but you like the tire size, keep the same height but get a narrower size. Good quality wheel spacers like Spidertrax are almost as expensive as some new rims, plus they require regular re-tightening of 2x as many lug nuts to be safe.
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