Grit Gears Dana 44/M220 4.56 Rear Ring & Pinion for Jeep JL, JT & 392 (GG-D44JL-4.56)

Grit Gears and Axle Ring and Pinion are manufactured to be compatible with Rear Dana 44 differentials for with Dana 44 / M220 rear axle differentials for 2018 and newer Jeep Wrangler JL, Gladiator JT & Jeep 392

Enhance your Jeep Wrangler’s performance by upgrading its Ring and Pinion gear set. Renowned for its reliability, this upgrade elevates your driving experience, whether you’re traversing rugged off-road trails or cruising on highways. Discover the unparalleled benefits of this essential component and why it is a crucial investment for your vehicle.

Key Benefits:

Enhanced Capability and Performance: The optimized gear ratio enhances torque delivery to the wheels, resulting in improved traction and control. By installing the appropriate gear ratio for your vehicle configuration, towing performance is significantly enhanced. 

Increased Fuel Efficiency at Highway Speeds: Contrary to popular belief, the optimal gear ratio can significantly enhance fuel efficiency. By precisely adjusting the engine’s RPM at highway speeds, the ring and pinion gear set facilitates a more efficient fuel consumption rate, resulting in cost savings and extended travel distances.

Superior Strength and Durability: Grit Gears is renowned for its unwavering commitment to quality. Our ring and pinion gear sets are meticulously crafted from high-grade steel through precise gear cutting and heat treatment processes that surpass Original Equipment standards. This meticulous approach ensures that our products not only deliver exceptional performance but also endure the demanding conditions of both everyday driving and extreme off-road environments.

Easy Installation and Quiet Operation: Our gear sets are renowned for their quiet operation, providing a comfortable ride without the disruptive gear whine commonly associated with aftermarket gear sets.

Upgrading the Ring and Pinion set by Grit Gears is more than just a modification; it's an investment in the performance, efficiency, and enjoyment of your vehicle.

Fitment

• 2018–2026 Jeep Wrangler JL
• 2018–2026 Jeep Gladiator JT
• 2021–2026 Jeep Wrangler 392

Specifications

• Gear ratio: 4.56
• Differential: Dana 44 / M220
• Pinion splines: 28
• Ring gear bolts: 10, M12 × 1.25 thread
• Carrier break: 3.07 and up
• Material: 8620
• Country of manufacture: Korea
• Part number: GG-D44JL-4.56

Break-in guidance

Follow a careful break-in to help prevent overheating and gear damage:

• Avoid heavy acceleration during break-in and keep the vehicle under 60 mph for the first 100 miles.
• Drive in 15–20 mile intervals, then stop and let the differential cool before continuing.
• Wait until at least 500 miles before towing. Keep the first tow under 15 miles, then let the differential cool.
• Change the gear oil after the 500-mile break-in to remove wear particles and the gear-set coating.

Gear oil

Recommended oil: non-synthetic 80W-90 or 85W-140, GL-5 grade or higher.

Warranty

Includes a one-year warranty against manufacturing defects.

Parts #GG-D44JL-4.56