Yukon Gear Master Overhaul Kit YK C9.25-R-B

Yukon YK C9.25-R-B Chrysler 9.25in Rear Differential Complete Rebuild Kit

The YK C9.25-R-B from Yukon Gear and Axle is the definitive master overhaul kit for the Chrysler 9.25-inch rear differential found in a broad range of 2001 and newer Dodge and Chrysler trucks, SUVs, and vans. When your Chrysler 9.25 rear axle develops bearing noise, gear chatter, or fluid leaks, the YK C9.25-R-B delivers every component required for a thorough complete rebuild kit without tracking down individual parts. Timken bearings, a full shim set, all seals, and every piece of hardware are included. From Ram pickups to Durango SUVs, the YK C9.25-R-B is your complete solution for rebuilding the Chrysler 9.25-inch rear differential.

Features and Benefits

• Engineered for the Chrysler 9.25-inch rear differential used in 2001 and newer Dodge/Chrysler trucks, SUVs, and vans
• Timken carrier bearings and races for reliable strength and extended service life
• Timken pinion bearings and races for accurate pinion depth and quiet operation
• Complete pinion depth shim set for correct gear mesh adjustment
• Complete carrier shim set for proper backlash and bearing preload
• Pinion seal and axle seals to eliminate fluid leaks
• Ring gear bolts, pinion nut, and crush sleeve for a complete hardware refresh
• Gear marking compound with brush and thread-locking compound included
• Differential cover gasket for a leak-free seal
• Compatible with OEM and aftermarket ring and pinion gear sets
• All components quality-verified to Yukon Gear standards

Vehicle Fitment

Specifications

What Is Included

• Timken front carrier bearing and race
• Timken rear carrier bearing and race
• Timken inner pinion bearing and race
• Timken outer pinion bearing and race
• Pinion seal
• Axle seals (pair)
• Complete pinion depth shim set
• Complete carrier shim set
• Ring gear bolt set
• Pinion nut
• Crush sleeve
• Thread-locking compound
• Gear marking compound with brush
• Differential cover gasket

Frequently Asked Questions

What is the difference between the Chrysler 9.25in and the 9.25in ZF?
The original Chrysler 9.25-inch rear differential was used from the early 1990s through approximately 2010. The ZF-sourced 9.25-inch replaced it in the 2011-and-newer Ram 1500. The YK C9.25-R-B is designed for the original (non-ZF) 9.25-inch axle used in 2001-and-newer applications.

Does the YK C9.25-R-B include Timken bearings?
Yes. The YK C9.25-R-B includes Timken carrier bearings with races and Timken pinion bearings with races for trusted durability.

Can I use this kit when installing a different gear ratio?
Yes. The comprehensive shim set in the YK C9.25-R-B provides the necessary materials to set pinion depth and backlash correctly for any compatible ring and pinion gear ratio.

Is a differential cover gasket included?
Yes. A differential cover gasket is part of the YK C9.25-R-B kit for a complete rebuild.

Does this kit fit Jeep Grand Cherokee models?
Yes. The YK C9.25-R-B fitment list includes 2011-2013 Jeep Grand Cherokee models equipped with the Chrysler 9.25-inch rear differential. Confirm via the axle tag before ordering.

Will installing the YK C9.25-R-B void my warranty under the Magnuson-Moss Warranty Act?
Under the Magnuson-Moss Warranty Act, installing an aftermarket part does not automatically void your vehicle warranty. The manufacturer must prove the aftermarket component caused the specific failure. Consult your warranty documentation and a qualified professional for guidance.

What warranty does Yukon Gear provide?
Yukon Gear and Axle offers a limited warranty on this kit for defects in materials and workmanship. Contact Yukon Gear directly for full terms.

Is professional installation recommended for the YK C9.25-R-B?
Yes. Differential rebuilds demand precision measurements for pinion depth, backlash, and bearing preload. A qualified drivetrain technician is strongly recommended.

Installation Instructions

1. Raise and support the vehicle safely on jack stands. Drain differential fluid.
2. Remove the rear driveshaft from the differential flange and secure it out of the way.
3. Remove the differential cover and clean all mating surfaces.
4. Mark bearing caps and housing for correct reinstallation orientation.
5. Remove carrier bearing caps and extract the differential carrier assembly.
6. Press old carrier bearings off the carrier and discard with races.
7. Remove the pinion nut and companion flange, then drive out the pinion shaft.
8. Press out old pinion bearings and remove the pinion seal from the housing.
9. Clean all bearing bores and surfaces in the housing.
10. Press new Timken pinion bearing races into the housing with appropriate drivers.
11. Determine the correct pinion shim thickness and install new inner pinion bearing and shim on the pinion shaft.
12. Install new crush sleeve and outer pinion bearing. Install new pinion seal. Thread on pinion nut and torque to spec while monitoring rotating torque.
13. Press new Timken carrier bearings onto the carrier. Install carrier assembly with carrier shims to achieve specified backlash.
14. Verify gear contact pattern with marking compound. Adjust shims as needed.
15. Torque bearing caps to spec. Install new gasket and cover, fill with correct gear oil, reinstall driveshaft, and lower the vehicle.

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 go to www.p65warnings.ca.gov.