
Stellantis's factory schedule assumes mixed street driving. Wrangler and Gladiator owners who run 35"+ tires, wheel regularly, or tow with a Gladiator need a parallel severe-use schedule — shorter oil intervals, proactive diff and transfer case fluid, and brake service tied to trail frequency rather than mileage alone.

Use the points below as a baseline for JL Wrangler and JT Gladiator platforms on 33–37" tires with regular trail use. Adjust shorter for weekly wheeling or re-geared axles.

Before a trail day: tire pressure (including spare), fluid levels, sway bar disconnect function, battery voltage, brake pad glance, and recovery gear check. After: inspect diffs and transfer case vents for water ingress, clean air filter if dusty, check brake rotor surface for rust or mud glazing, and torque lug nuts after tire rotation or wheel removal.
Learn more in our Wrangler JL oil change guide.
Learn more in our Jeep differential and transfer case fluid guide.
Learn more in our full Jeep diff and transfer case fluid guide.
Learn more in our Wrangler brake upgrade guide.
Learn more in our Ghost Rotors Gladiator brake kits.
Maintenance schedule plus GEOMET-coated brake upgrade = trail-ready Wrangler or Gladiator.
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