Jeep Wrangler YJ biggest tire size: stock and lifted
The biggest tire owners run on a Jeep Wrangler YJ at every lift height, with the trimming it takes, the wheel specs you need and the lift kits that get you there.
A stock YJ usually takes 30-inch tires on stock rims without trouble. Four Wheel Trends says 31x10.50s can be squeezed on, but they may need wheels with different backspacing and can still rub, so don't wheel that setup hard without a lift.
Biggest Jeep Wrangler YJ tire at every lift
| LIFT | BIGGEST TIRE | WHAT IT TAKES |
|---|---|---|
| Stock | 30x9.50R15 | Jeep's own Renegade size, so it fits an unmodified YJ; bigger tires on stock springs depend on wheel backspacing and flares. |
| 2.5 in | 31x10.50R15 | Rough Country's 2.5 in YJ kit lists clearance for 31s on 15x8 wheels; test-fit the wheel and tire before you commit. |
| 4 in | 33x12.50R17 | Rough Country's 4 in YJ kit lists 33x12.50 on 17-, 18- and 20-inch wheels; the 20-inch combos need minor trimming. Plan a re-gear from the factory ratio. |
Jeep Wrangler YJ wheel and tire specs
| Factory tire sizes | 205/75R15 or 215/75R15 (base models) · 225/75R15 (some trims) · 30x9.50R15 LT on 15x8 alloys (Renegade) |
|---|---|
| Bolt pattern | 5x114.3 (5x4.5") |
| Center bore | 71.5 mm |
| Lug thread | 1/2"-20 |
Lift kits, wheels and tires for the Jeep Wrangler YJ
Fresh leaf packs and urethane bushings transform a tired YJ, and a mild lift clears 31s. Spring-over-axle conversions are the classic path to bigger tires.
Bigger tires need lower gears, and a locker turns the YJ's short wheelbase into a proper crawler.
The factory bumpers are thin. A steel bumper with a winch mount is the first piece of armor most YJs get.
Fitment comes from owners and specialists; wheel width, offset, trimming and bump stops change what fits. Check clearance at full lock and full flex before you buy. Some links are affiliate links.