It depends on your set up. Like the tire size. I put a 1" lift on my XJ today and without the front coil spacers, my 30's would rub in the front fender wells. Plus the back end sat up higher than I thought it would.
1997 Black XJ Sport 4x4, 1" Shackle/coil spacer lift, Ram Brush guard w/ 6in spot lights, Smittybilt Nerf bars, Class III Hidden Hitch, Elliptical Driving Lamps, Prime Wheels#234 15x8.5, 30x9.50r15, BFG AT's, JVC CD player, Alpine V12 Amp, 1-12in RockfordFosgate Subs, 5-1/4 Rockford Fosgate component speakers in doors & sound bar, Euro-spoiler, Pacesetter Cat-Back, Optima Red Top battery, HID Headlamp Conversion, Gabriel Hijacker Air Shocks on rear axle