Motive Gear 122 F890-411 Differential Ring and Pinion for Ford 9" Rear, 4.11 Gear Ratio, 8620 Steel, 10-Bolt, 28-Spline, Compatible with Bronco, F-150, Mustang, Ranchero, Thunderbird & More

Product OverviewThe Motive Gear MGK-108 is a high-performance ring and pinion gear package designed specifically for the Dana 44 front and rear axles in 2007–2018 Jeep Wrangler JK Rubicon models. With a 5.38 gear ratio, this set is ideal for improved low-end torque and off-road performance.FeaturesGear Ratio: 5.38Axle Compatibility: Dana 44 JK Reverse (Front) / Dana 44 JK Standard (Rear)Pinion Teeth: 8 | Ring Gear Teeth: 43Pinion Shaft Diameter: 1.376"Pinion Spline Count: 24Ring Gear Diameter: 8.5"Ring Gear Rotation: Reverse (Front) / Standard (Rear)Material: 8620 High-Strength SteelRing Gear Bolt Count: 10Application & CompatibilityBrand: JeepWrangler JK: 2007–2018 (Rubicon models with Dana 44 front and rear axles)ReplacesNitro Gear & Axle: GPJKRUBICON-5.38Revolution Gear & Axle: REV-JK-RUB-538Yukon Gear and Axle: YGK017Warranty & Quality AssuranceMotive Gear backs this kit with a 1-year or 50,000-mile warranty. Each component is manufactured to meet or exceed OEM standards using premium-grade 8620 steel for dependable performance in rugged off-road conditions.

• Designed for Dana 44 JK Rubicon front (reverse) and rear (standard) axles with 5.38 gear ratio; fits 2007–2018 Jeep Wrangler JK.
• Includes 8-tooth pinion gear and 43-tooth ring gear with 1.376" pinion shaft diameter and 24-spline count.
• Features 10-bolt ring gear pattern and 8.5" outside diameter; manufactured from durable 8620 steel for high torque loads.
• Complete ring & pinion set includes premium Timken bearing kits for both front and rear differential assemblies.
• Backed by Motive Gear’s 1-year or 50,000-mile warranty; ideal for off-road and rock-crawling Jeep applications.