Mopar 68400380AA Front Dana 44 Differential Cover Gasket for 18-27 Jeep Wrangler JL and Gladiator JT

The front differential is one of the hardest-working components on a Jeep Wrangler or Gladiator, especially when you need four-wheel drive to navigate difficult terrain. Inside the axle housing, the ring and pinion gears and differential bearings depend on a consistent supply of gear oil for proper lubrication and protection. The Mopar Front Dana 44 Differential Cover Gasket provides a factory-engineered seal between the differential cover and housing, helping keep that critical lubricant where it belongs.

Designed specifically for the M210 front Dana 44 axle found in compatible 2018–2027 Jeep Wrangler JL and 2020–2027 Jeep Gladiator JT models, this genuine Mopar gasket replaces the original sealing component when servicing the differential. Whether you're changing gear oil, inspecting internal axle components, replacing a damaged cover, or installing a compatible Mopar Performance differential cover, a properly fitted gasket is essential to maintaining a dependable seal.

Unlike basic paper-style differential gaskets, the Mopar OEM Differential Cover Gasket features a reinforced construction that combines a metal core with a rubber sealing surface. The metal reinforcement helps the gasket maintain its shape during installation, while the rubber material creates the sealing interface between the differential cover and axle housing. This construction provides the strength and flexibility needed for a component exposed to repeated temperature changes, drivetrain vibration, and the demanding conditions associated with off-road driving.

One of the biggest advantages of this gasket is its compatibility with both standard and wide M210 front axle configurations. Jeep uses different front axle arrangements across Wrangler JL and Gladiator JT applications, but this gasket accommodates the appropriate M210 differential cover mounting pattern. It also works with factory production and compatible Mopar Performance differential covers, making it a practical replacement for owners maintaining their original axle or upgrading to a factory-engineered heavy-duty cover.

Installation is straightforward for anyone familiar with differential maintenance. After removing the original cover, thoroughly clean and inspect the mating surfaces for damage. Then position the new gasket between the differential cover and housing, and tighten the cover bolts according to the applicable factory service procedure. Refill the axle with the correct gear lubricant to the specified level before returning the vehicle to service.

Important Axle Compatibility Note: Designed specifically for the M210 front Dana 44 axle. Not compatible with the M220 rear Dana 44 differential, which uses a different housing shape and cover bolt pattern. The Mopar rear M220 differential cover gasket is part number 68393981AA.

Installation Notes

Installation Difficulty:

Level 2Intermediate

Installation Time: 1-2 hours

Parts Included

1 Gasket

Warranty

12 Month/12,000 Mile Warranty