Yukon Gear Master Overhaul Kit For Dana 44 Rear Diff For Use w/ New 07+ Non-JK Rubicon

Yukon Master Overhaul Kit YK D44-JK-STD for Dana 44 Rear Differential

The Yukon Master Overhaul Kit YK D44-JK-STD gives you everything needed to rebuild the Dana 44 rear differential found in 2007 to 2017 Jeep Wrangler JK models. This kit uses YK D44-JK-STD Timken bearings, high-quality seals, and a complete shim set so you get a precision rebuild the first time. Whether you are refreshing worn bearings after high-mileage trail use or completing a ring and pinion swap, the YK D44-JK-STD supplies every component in one box, saving you multiple trips to the parts counter.

Features and Benefits

• Timken carrier bearings and races for long-lasting, precise differential operation
• Timken pinion bearings and races matched to Dana 44 JK non-Rubicon specifications
• Complete shim kit for accurate pinion depth and carrier preload adjustment
• High-quality pinion seal prevents gear oil leaks at the driveshaft flange
• Crush sleeve included for proper pinion bearing preload during assembly
• Ring gear bolts, pinion nut, and thread locker included for a complete fastener set
• Oil baffles and slingers maintain proper lubrication distribution inside the housing
• Marking compound and brush included for pinion depth and backlash verification
• Cover gasket ensures a leak-free differential housing seal
• Designed specifically for the 2007 and newer Dana 44 non-Rubicon rear axle geometry
• One-year manufacturer warranty backed by Yukon Gear

Fitment

Specifications

What Is Included

• Timken carrier bearings and races precision-ground to Dana 44 JK non-Rubicon specification
• Timken pinion bearings and races for accurate pinion preload and long service life
• Pinion seal to prevent gear oil leaks at the driveshaft yoke
• Complete shim kit covering both pinion depth and carrier side bearing preload adjustments
• Ring gear bolts sized for the Dana 44 JK non-Rubicon ring gear bolt pattern
• Pinion nut for proper crush sleeve and bearing preload retention
• Crush sleeve to set correct pinion bearing preload during assembly
• Oil baffles and slingers to maintain proper lubrication inside the differential housing
• Thread locker for ring gear bolt and carrier bearing cap bolt retention
• Marking compound and brush for verifying pinion depth and gear contact pattern
• Cover gasket for a leak-free differential housing cover seal

Frequently Asked Questions

Does YK D44-JK-STD fit the Jeep JK Rubicon model?
No. The YK D44-JK-STD is designed for non-Rubicon 2007 to 2017 Jeep Wrangler JK models. The Rubicon uses a different Dana 44 variant with different bearing specifications. Verify your axle code before ordering.

What years of Jeep Wrangler does this kit cover?
This kit covers 2007 through 2017 Jeep Wrangler JK non-Rubicon rear axle applications. See the fitment table above for complete trim-level detail.

Does this kit include a crush sleeve?
Yes. A new crush sleeve is included with every YK D44-JK-STD kit. A new crush sleeve should always be used when rebuilding the differential to set correct pinion bearing preload.

Are the bearings in this kit name-brand?
Yes. This kit includes Timken carrier bearings and races along with Timken pinion bearings and races. Timken is a globally recognized brand known for precision and durability in drivetrain applications.

Does the kit include marking compound for setup?
Yes. Marking compound and a brush are included so you can verify the pinion depth and gear contact pattern during assembly, which is essential for correct differential operation.

Will installing this kit void my vehicle warranty?
Under the Magnuson-Moss Warranty Act, a manufacturer cannot void your vehicle warranty simply because you used an aftermarket part, unless they can prove the aftermarket part caused the failure. This kit is a direct-replacement rebuild kit using quality Timken components.

Is this kit legal to use in California?
This product contains chemicals known to the State of California to cause cancer and birth defects or other reproductive harm. Please review the Prop 65 notice at the bottom of this page.

How long does the Yukon warranty last?
Yukon Gear provides a 1-year manufacturer warranty on the YK D44-JK-STD kit covering defects in materials and workmanship under normal use conditions.

Do I need any special tools to install this kit?
Yes. Differential rebuilds require a dial indicator, bearing press, pinion depth gauge, and inch-pound torque wrench. The included 20-page installation instruction sheet covers tool requirements in detail.

Are ring gear bolts included?
Yes. Ring gear bolts sized for the Dana 44 JK non-Rubicon ring gear are included in the YK D44-JK-STD kit.

Installation Instructions

1. Raise the vehicle and support it safely on jack stands before beginning any differential work.
2. Drain the differential gear oil completely into an approved container.
3. Remove the driveshaft and disconnect the axle shafts from the differential.
4. Remove the differential cover and clean all mating surfaces thoroughly.
5. Mark carrier bearing caps for correct reassembly orientation before removal.
6. Remove the ring and pinion gears along with the carrier assembly.
7. Press off old carrier bearings and pinion bearings using the appropriate bearing press.
8. Clean the differential housing and inspect for cracks or wear before assembly.
9. Press on new Timken pinion bearings and races from the YK D44-JK-STD kit.
10. Set pinion depth using the included shim set and verify with marking compound and brush.
11. Install the new crush sleeve and torque the pinion nut to achieve the specified inch-pound preload reading on a dial indicator.
12. Press on new Timken carrier bearings and races, then set backlash using the carrier side shims.
13. Install the new cover gasket and torque the cover bolts to specification. Refill with the correct gear oil to the manufacturer specification and check for leaks before returning the vehicle to service.

Proposition 65 Warning: This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information, visit www.p65warnings.ca.gov.