Jeep Gladiator JT biggest tire size: stock and lifted
The biggest tire owners run on a Jeep Gladiator JT at every lift height, with the trimming it takes, the wheel specs you need and the lift kits that get you there.
On a Rubicon or Mojave, a 35x11.50R17 on the stock 17x7.5 wheel, per Drivingline's Rubicon fitment guide, which also says 37s need at least a 1-inch front spacer and bump stops and still rub off-road. On Sport and Sport S trucks, JeepGladiatorForum owners run 33s (285/70R17) without rubbing. Some say 35s work on stock suspension with little rubbing; others say they hit the flares at full flex.
Biggest Jeep Gladiator JT tire at every lift
| LIFT | BIGGEST TIRE | WHAT IT TAKES |
|---|---|---|
| Stock | 33 in (285/70R17) on Sport; 35x11.50R17 on Rubicon/Mojave | Drivingline says a stock Rubicon runs 35x11.50R17 on the factory 17x7.5 wheel. JeepGladiatorForum owners report 33s on stock Sports without rubbing; opinions differ on 35s, which may touch the flares at full flex. |
| 1 in front spacer + bump stops | 37 in (Rubicon) | Drivingline's minimum for 37s on a Rubicon; expect some rubbing off-road. Wheel backspacing is critical, and 4.88 or 5.13 gears are recommended. |
| 2 in (AEV Upcountry, 2024+) | 35 in BFGoodrich KO2 | AEV package offered with the 2024 refresh on Sport, Willys, Mojave and Rubicon. AEV's Rubicon-only Level II package uses 37s. |
Jeep Gladiator JT wheel and tire specs
| Factory tire sizes | 245/75R17 (Sport, Sport S) · 255/70R18 (Overland) · LT285/70R17C (Rubicon, Mojave) |
|---|---|
| Bolt pattern | 5x127 (5x5") |
| Center bore | 71.5 mm |
| Lug thread | M14x1.5 |
Lift kits, wheels and tires for the Jeep Gladiator JT
A leveling kit or 2.5 in lift clears 35s on most trims. Longer coils or a full kit suit heavier overland builds.
A steel front bumper adds a winch mount and recovery points.
Regear for 35s or 37s, armor the diff covers, or swap in Dana 60s for big tires.
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.