Tire size guide vs. lift height (XJ)

Rough XJ tire-fit chart that holds across most owners:

• Stock suspension: 225/75R15 (~28.3") fits factory. 30x9.50R15 fits with minor rub at full stuff.
• 2" budget boost / lift: 30"–31" comfortable. 31x10.50R15 is the classic budget fit.
• 3" lift (short arm): 31"–32". 32x11.50R15 clears with a small bumpstop tweak.
• 4.5" lift (short arm): 32"–33". 33x12.50R15 needs front fender trim or steel high-clearance flares, and bumpstop extensions.
• 5.5"+ long arm or SOA: 33"–35". 35s require fender cut/flare swap and one-ton steering on the front.
• SOA + extended bumpstops: 35" reliable, 37" possible but enters axle-swap territory.

Backspacing is as important as size — 3.75" backspace is the standard rule of thumb for XJs; 4.5" backspacing on stock-width axles pushes tires into the fender at full stuff.

Don't forget gear ratio: 31s want 4.10s, 33s want 4.56s, 35s want 4.88s minimum (manual) / 5.13s (automatic).

Why it works

• sanity-check chart before buying tires

Trade-offs

• every truck is a little different — measure yours

Tools required

• tape measure

Sources

• NAXJA tire fitment FAQ

Related

• Spare tire mounting options — rear bumper vs roof vs swing-out
• 15" vs 16" wheels on XJ
• All Jeep Cherokee XJ guides & tools
• Browse the full DIY database

Written and maintained by an AZ wheeler and driveway wrencher. How we source guides. Always cross-reference your factory service manual — modifications affect vehicle safety and warranty. Work at your own risk.