LuK GDK325A Differential Bearing Kit

The LuK GDK325A differential bearing kit provides OE-quality bearings for professional transmission and differential service. It is built for rear axle applications on a wide range of Chevrolet and GMC trucks, vans, and chassis-cab models with the 10.5-inch axle.

• OE-quality differential bearing kit for transmission and axle repair
• Includes the bearings needed for a professional differential service
• Application-specific selection for the listed rear axle fitments
• Direct replacement for common service needs on heavy-duty GM platforms

Fitment Coverage

• Fits 1989-1997 Chevrolet C2500, rear, 10.5"
• Fits 1989-1997 Chevrolet C3500, rear, 10.5"
• Fits 1996-1997 Chevrolet Express 2500, rear, 10.5"
• Fits 1996-1997 Chevrolet Express 3500, rear, 10.5"
• Fits 1989-1997 Chevrolet K2500, rear, 10.5"
• Fits 1989-1997 Chevrolet K3500, rear, 10.5"
• Fits 1989-1997 Chevrolet P30, rear, 10.5"
• Fits 1989-1997 GMC C2500, rear, 10.5"
• Fits 1989-1997 GMC C3500, rear, 10.5"
• Fits 1989-1997 GMC K2500, rear, 10.5"
• Fits 1989-1997 GMC K3500, rear, 10.5"
• Fits 1989-1997 GMC P3500, rear, 10.5"
• Fits 1996-1997 GMC Savana 2500, rear, 10.5"
• Fits 1996-1997 GMC Savana 3500, rear, 10.5"
• Fits 1989-1996 Chevrolet G30, rear, 10.5"
• Fits 1989-1996 GMC G3500, rear, 10.5"
• Fits 1989-1995 Chevrolet G20, rear, 10.5"
• Fits 1989-1995 GMC G2500, rear, 10.5"
• Fits 1989-1991 Chevrolet R3500, rear, 10.5"
• Fits 1989-1991 Chevrolet V3500, rear, 10.5"
• Fits 1989-1991 GMC R3500, rear, 10.5"
• Fits 1989-1991 GMC V3500, rear, 10.5"
• Fits 1989 Chevrolet P20, rear, 10.5"
• Fits 1989 Chevrolet R2500, rear, 10.5"
• Fits 1989 GMC P2500, rear, 10.5"
• Fits 1989 GMC R2500, rear, 10.5"
• Fits 1988 Chevrolet C2500, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet C3500, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet G20, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet G30, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet K2500, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet K3500, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet P20, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet P30, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet R20, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet R30, rear, 10.5" 2nd Design
• Fits 1988 Chevrolet V30, rear, 10.5" 2nd Design
• Fits 1988 GMC C2500, rear, 10.5" 2nd Design
• Fits 1988 GMC C3500, rear, 10.5" 2nd Design
• Fits 1988 GMC G2500, rear, 10.5" 2nd Design
• Fits 1988 GMC G3500, rear, 10.5" 2nd Design
• Fits 1988 GMC K2500, rear, 10.5" 2nd Design
• Fits 1988 GMC K3500, rear, 10.5" 2nd Design
• Fits 1988 GMC P2500, rear, 10.5" 2nd Design
• Fits 1988 GMC P3500, rear, 10.5" 2nd Design
• Fits 1988 GMC R2500, rear, 10.5" 2nd Design
• Fits 1988 GMC R3500, rear, 10.5" 2nd Design
• Fits 1988 GMC V3500, rear, 10.5" 2nd Design

Common Repair Uses

• Repairing differential bearing wear in the rear axle
• Addressing noise from worn or damaged bearings
• Restoring proper differential support during transmission or axle service
• Replacing bearings during rebuild work on Chevrolet C2500, C3500, and GMC K3500 applications
• Servicing 10.5-inch rear axle assemblies on heavy-duty GM trucks and vans

Installation Notes

Confirm the axle size and design before ordering, especially on 1988 models with the 2nd Design note. Professional installation is recommended for differential setup, bearing preload, and gear pattern verification. This part cross-references Timken DRK325A for the same application.

Quality Assurance

LuK selects OE-quality components for each specific transmission application to support a professional repair standard. The GDK325A is built as a service kit for the listed rear axle applications and is identified by part number GDK325A.