Yukon YK D44-JK-RUB Master Overhaul Kit Dana 44 Rear 2007-2018 Jeep JK Rubicon

Vehicle Fitment

• 2007-2018 Jeep Wrangler JK Rubicon (2-Door, Dana 44 Rear Axle, 4WD, 32-Spline)
• 2007-2018 Jeep Wrangler JK Unlimited Rubicon (4-Door, Dana 44 Rear Axle, 4WD, 32-Spline)

Fitment Notes

• Fits Rubicon trim Dana 44 rear axle only - does not fit non-Rubicon JK models (Sport, Sahara, X); use YK D44-JK-STD for those applications
• Rubicon rear Dana 44 uses a 32-spline axle configuration unique to this trim - different from the 30-spline non-Rubicon Dana 44 rear
• 2018 model year: confirm vehicle is a JK, not a JL - Wrangler JL Rubicon requires a different overhaul kit
• For the Dana 44 front axle on JK Rubicon (reverse rotation), use YK D44-JK-REV-RUB instead

Features

• Application-specific master overhaul kit engineered exclusively for the JK Rubicon Dana 44 rear differential
• Timken bearings and races - OEM-tier quality for dependable performance on-road and on the trail
• Includes both carrier and pinion bearing sets for a complete, start-to-finish differential rebuild
• Oil baffles and slingers included to protect internal components and maintain proper lubrication
• Complete shim kit enables precise pinion depth, backlash, and carrier preload adjustment
• Ring gear bolts, pinion nut, and crush sleeve included - no additional hardware sourcing needed
• Thread locker and marking compound with brush included for accurate gear contact pattern verification
• Differential cover gasket and pinion seal included for a complete, leak-free reassembly

Specifications

• Differential: Dana 44 Rear
• Axle Spline Count: 32-Spline (Rubicon-specific)
• Ring Gear Diameter: 8.50 inches
• Pinion Spline Count: 24-Spline
• Ring Gear Bolt Count: 10
• Bearing Brand: Timken (USA/Japan manufactured)
• Position: Rear Differential
• Drivetrain: 4WD

Included Components

• 2x Carrier Bearings with Races
• 2x Pinion Bearings with Races
• 1x Pinion Seal
• 1x Complete Shim Kit (Carrier and Pinion)
• 1x Ring Gear Bolt Set (10-Bolt)
• 1x Pinion Nut
• 1x Crush Sleeve
• 1x Oil Baffle and Slinger Set
• 1x Thread Locking Compound
• 1x Marking Compound with Brush
• 1x Differential Cover Gasket

Product Description

The Yukon YK D44-JK-RUB is a complete master overhaul kit designed specifically for the Dana 44 rear axle found exclusively on 2007-2018 Jeep Wrangler JK and JK Unlimited Rubicon models. The Rubicon's rear Dana 44 features a unique 32-spline axle configuration and e-locker integration that sets it apart from the non-Rubicon JK Dana 44 rear - making a Rubicon-specific kit essential for a correct and reliable rebuild. Whether you're performing a gear ratio swap, replacing worn bearings after trail use, or doing a full differential overhaul, this kit supplies every component needed to complete the job right the first time.

Every component in this kit is hand-selected for the JK Rubicon application, centered around Timken bearings and races trusted by OEM manufacturers worldwide. The inclusion of oil baffles and slingers, a full shim kit, ring gear bolts, pinion nut, crush sleeve, cover gasket, thread locker, and marking compound makes this the most complete Rubicon Dana 44 rear overhaul solution available. Always confirm your 2018 Wrangler is a JK and not a JL before ordering, as the JL Rubicon uses a different axle design requiring a separate kit.