OE-Quality Differential Bearing Kit

The LuK GDK311K-MK differential bearing kit provides the OE-quality bearings needed for a professional transmission repair. It is built for rear 8.8" IRS applications in select Ford and Mercury vehicles, including the Explorer, Explorer Sport Trac, and Mountaineer.

• OE-quality bearing kit for differential service
• Built for professional transmission repair work
• Application-specific components selected for the listed drivetrain
• Fits rear 8.8" IRS configurations
• LuK GDK311K-MK for targeted driveline service

Detailed Application Coverage

Compatible With 2006-2007 Ford Explorer, rear 8.8" IRS; 2007 Ford Explorer Sport Trac, rear 8.8" IRS; and 2006-2007 Mercury Mountaineer, rear 8.8" IRS. The LuK GDK311K-MK is a differential bearing and seal kit category repair part used when servicing the rear differential assembly on these vehicles. This part cross-references SKF (e.g., SDK311-KMK) for the same application.

Common Repair Uses

• Rear differential bearing noise
• Excessive drivetrain vibration from worn bearings
• Gear wear related to bearing deterioration
• Service repair on a leaking or noisy rear differential assembly
• Restoration of proper differential support in 8.8" IRS setups

Installation Notes

Verify axle configuration before ordering: this kit is listed for rear 8.8" IRS applications only. Confirm the vehicle year, make, model, and differential setup against the fitment data before disassembly. Professional installation and setup procedures are recommended for differential service, including proper inspection of related components during repair.

Quality Assurance

LuK states that each differential bearing kit is assembled with OE-quality bearings selected for the specific transmission or differential application, supporting a professional-grade repair approach. Part number GDK311K-MK is matched to the listed Ford and Mercury rear differential applications.