Front differential
Gear oil spec
Mopar Gear & Axle Lubricant SAE 75W-85 GL-5
Spec from the OEM (oem manual).
Where this came from
- 2019 Jeep Wrangler (JL) Owner's Manual — Fluid Capacities, p.520 — source
2018-2026 Jeep Wrangler differential fluid & capacity
The Wrangler has more than one differential, and they don't all take the same fluid. Each axle's exact gear oil spec and capacity is below, plus where to buy it.
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Rear differential
Gear oil spec
Mopar Gear & Axle Lubricant SAE 75W-85 GL-5
Limited-slip differential. Friction modifier: required on Trac-Lok limited-slip (M220). Use an LSD-rated gear oil or add the modifier — a non-LSD fluid can make an LSD chatter.
Spec from the OEM (oem manual).
Where this came from
- 2019 Jeep Wrangler (JL) Owner's Manual — Fluid Capacities, p.520 — source
Spec anchored to the OEM owner's manual; the capacity, when it carries the verified badge, is cross-checked against an independent source. Never changed by what an affiliate link pays us. Your owner's manual is always the final word — and if your axle has a locker or an option package, double-check the capacity for your exact build.