Luk GDK325-MK Axle Differential Bearing and Seal Kit - Rear

Name: Luk GDK325-MK Axle Differential Bearing and Seal Kit - Rear
Brand: Luk
SKU: BBZH-GDK325-MK
Price: 307.82 USD
Availability: InStock

Rear

⚙️ 206 vehicles fit this part

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✅OE Direct Replacement — Bolt-on fit, no modifications needed

🚗Fitment: Chevrolet and GMC, C20, C2500, C30, C3500, G20, G25, G25/G2500 Van, G2500, G30, G35, G3500, K20, K2500, K30, K3500, P20, P2500, P30, P3500, R20, R2500, R30, R3500, V20, V2500, V30, and V3500

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LuK Differential Bearing Kit for Rear Axles

The LuK GDK325-MK is an axle differential bearing and seal kit for rear applications on select Chevrolet and GMC trucks, vans, and chassis-cab models. It provides OE-quality bearings selected for the specific transmission or differential repair application, helping restore proper operation in the rear axle assembly.

Part number: GDK325-MK
Part type: axle differential bearing and seal kit
OE-quality bearing components selected for the application
Rear position fitment only
Cross-references SKF SDK325-MK and 4620043100

Fitment Details

Fits 1988 Chevrolet C2500, rear, 10.5" 1st Design
Fits 1988 Chevrolet C3500, rear, 10.5" 1st Design
Fits 1988 Chevrolet G20, rear, 10.5" 1st Design
Fits 1988 Chevrolet G30, rear, 10.5" 1st Design
Fits 1988 Chevrolet K2500, rear, 10.5" 1st Design
Fits 1988 Chevrolet K3500, rear, 10.5" 1st Design
Fits 1988 Chevrolet P20, rear, 10.5" 1st Design
Fits 1988 Chevrolet P30, rear, 10.5" 1st Design
Fits 1988 Chevrolet R20, rear, 10.5" 1st Design
Fits 1988 Chevrolet R30, rear, 10.5" 1st Design
Fits 1988 Chevrolet V30, rear, 10.5" 1st Design
Fits 1988 GMC C2500, rear, 10.5" 1st Design
Fits 1988 GMC C3500, rear, 10.5" 1st Design
Fits 1988 GMC G2500, rear, 10.5" 1st Design
Fits 1988 GMC G3500, rear, 10.5" 1st Design
Fits 1988 GMC K2500, rear, 10.5" 1st Design
Fits 1988 GMC K3500, rear, 10.5" 1st Design
Fits 1988 GMC P2500, rear, 10.5" 1st Design
Fits 1988 GMC P3500, rear, 10.5" 1st Design
Fits 1988 GMC R2500, rear, 10.5" 1st Design
Fits 1988 GMC R3500, rear, 10.5" 1st Design
Fits 1988 GMC V3500, rear, 10.5" 1st Design
Fits 1975-1987 Chevrolet G20, rear, 10.5"
Fits 1975-1987 Chevrolet G30, rear, 10.5"
Fits 1975-1987 Chevrolet P20, rear, 10.5"
Fits 1975-1987 Chevrolet P30, rear, 10.5"
Fits 1987 Chevrolet R20, rear, 10.5"
Fits 1987 Chevrolet R30, rear, 10.5"
Fits 1987 Chevrolet V20, rear, 10.5"
Fits 1987 Chevrolet V30, rear, 10.5"
Fits 1979-1987 GMC G2500, rear, 10.5"
Fits 1979-1987 GMC G3500, rear, 10.5"
Fits 1979-1987 GMC P2500, rear, 10.5"
Fits 1979-1987 GMC P3500, rear, 10.5"
Fits 1987 GMC R2500, rear, 10.5"
Fits 1987 GMC R3500, rear, 10.5"
Fits 1987 GMC V2500, rear, 10.5"
Fits 1987 GMC V3500, rear, 10.5"
Fits 1975-1986 Chevrolet C20, rear, 10.5"
Fits 1975-1986 Chevrolet C30, rear, 10.5"
Fits 1975-1986 Chevrolet K20, rear, 10.5"
Fits 1977-1986 Chevrolet K30, rear, 10.5"
Fits 1979-1986 GMC C2500, rear, 10.5"
Fits 1979-1986 GMC C3500, rear, 10.5"
Fits 1979-1986 GMC K2500, rear, 10.5"
Fits 1979-1986 GMC K3500, rear, 10.5"
Fits 1975-1978 GMC G25, rear, 10.5"
Fits 1975-1978 GMC G35, rear, 10.5"
Fits 1973-1974 GMC G25/G2500 Van, rear, 10.5"

What This Kit Helps Address

Rear differential bearing noise
Wear-related bearing roughness
Service needs during differential rebuilds
Restoration work on older Chevrolet and GMC rear axles
Replacement of worn OE-style bearing components

Installation Notes

Confirm rear axle identification before ordering, including the 10.5" 1st Design note where listed. This kit is for rear applications only and should be matched to the exact vehicle year, make, model, and axle configuration shown in the fitment data. Professional differential setup is recommended after bearing service to verify proper assembly and gear operation.

Quality Assurance

LuK selects OE-quality components for each specific transmission or differential application, and this kit is built around that application-specific approach. The GDK325-MK is intended for professional repair work on compatible Chevrolet and GMC rear axle applications.

This part fits 206 vehicles. Search below:

Year	Make	Model	Position	Notes
1988	Chevrolet	C2500	Rear	10.5" 1st Design
1988	Chevrolet	C3500	Rear	10.5" 1st Design
1988	Chevrolet	G20	Rear	10.5" 1st Design
1988	Chevrolet	G30	Rear	10.5" 1st Design
1988	Chevrolet	K2500	Rear	10.5" 1st Design
1988	Chevrolet	K3500	Rear	10.5" 1st Design
1988	Chevrolet	P20	Rear	10.5" 1st Design
1988	Chevrolet	P30	Rear	10.5" 1st Design
1988	Chevrolet	R20	Rear	10.5" 1st Design
1988	Chevrolet	R30	Rear	10.5" 1st Design
1988	Chevrolet	V30	Rear	10.5" 1st Design
1988	GMC	C2500	Rear	10.5" 1st Design
1988	GMC	C3500	Rear	10.5" 1st Design
1988	GMC	G2500	Rear	10.5" 1st Design
1988	GMC	G3500	Rear	10.5" 1st Design
1988	GMC	K2500	Rear	10.5" 1st Design
1988	GMC	K3500	Rear	10.5" 1st Design
1988	GMC	P2500	Rear	10.5" 1st Design
1988	GMC	P3500	Rear	10.5" 1st Design
1988	GMC	R2500	Rear	10.5" 1st Design
1988	GMC	R3500	Rear	10.5" 1st Design
1988	GMC	V3500	Rear	10.5" 1st Design
1987	Chevrolet	G20	Rear	10.5"
1987	Chevrolet	G30	Rear	10.5"
1987	Chevrolet	P20	Rear	10.5"
1987	Chevrolet	P30	Rear	10.5"
1987	Chevrolet	R20	Rear	10.5"
1987	Chevrolet	R30	Rear	10.5"
1987	Chevrolet	V20	Rear	10.5"
1987	Chevrolet	V30	Rear	10.5"
1987	GMC	G2500	Rear	10.5"
1987	GMC	G3500	Rear	10.5"
1987	GMC	P2500	Rear	10.5"
1987	GMC	P3500	Rear	10.5"
1987	GMC	R2500	Rear	10.5"
1987	GMC	R3500	Rear	10.5"
1987	GMC	V2500	Rear	10.5"
1987	GMC	V3500	Rear	10.5"
1986	Chevrolet	C20	Rear	10.5"
1986	Chevrolet	C30	Rear	10.5"
1986	Chevrolet	G20	Rear	10.5"
1986	Chevrolet	G30	Rear	10.5"
1986	Chevrolet	K20	Rear	10.5"
1986	Chevrolet	K30	Rear	10.5"
1986	Chevrolet	P20	Rear	10.5"
1986	Chevrolet	P30	Rear	10.5"
1986	GMC	C2500	Rear	10.5"
1986	GMC	C3500	Rear	10.5"
1986	GMC	G2500	Rear	10.5"
1986	GMC	G3500	Rear	10.5"
1986	GMC	K2500	Rear	10.5"
1986	GMC	K3500	Rear	10.5"
1986	GMC	P2500	Rear	10.5"
1986	GMC	P3500	Rear	10.5"
1985	Chevrolet	C20	Rear	10.5"
1985	Chevrolet	C30	Rear	10.5"
1985	Chevrolet	G20	Rear	10.5"
1985	Chevrolet	G30	Rear	10.5"
1985	Chevrolet	K20	Rear	10.5"
1985	Chevrolet	K30	Rear	10.5"
1985	Chevrolet	P20	Rear	10.5"
1985	Chevrolet	P30	Rear	10.5"
1985	GMC	C2500	Rear	10.5"
1985	GMC	C3500	Rear	10.5"
1985	GMC	G2500	Rear	10.5"
1985	GMC	G3500	Rear	10.5"
1985	GMC	K2500	Rear	10.5"
1985	GMC	K3500	Rear	10.5"
1985	GMC	P2500	Rear	10.5"
1985	GMC	P3500	Rear	10.5"
1984	Chevrolet	C20	Rear	10.5"
1984	Chevrolet	C30	Rear	10.5"
1984	Chevrolet	G20	Rear	10.5"
1984	Chevrolet	G30	Rear	10.5"
1984	Chevrolet	K20	Rear	10.5"
1984	Chevrolet	K30	Rear	10.5"
1984	Chevrolet	P20	Rear	10.5"
1984	Chevrolet	P30	Rear	10.5"
1984	GMC	C2500	Rear	10.5"
1984	GMC	C3500	Rear	10.5"
1984	GMC	G2500	Rear	10.5"
1984	GMC	G3500	Rear	10.5"
1984	GMC	K2500	Rear	10.5"
1984	GMC	K3500	Rear	10.5"
1984	GMC	P2500	Rear	10.5"
1984	GMC	P3500	Rear	10.5"
1983	Chevrolet	C20	Rear	10.5"
1983	Chevrolet	C30	Rear	10.5"
1983	Chevrolet	G20	Rear	10.5"
1983	Chevrolet	G30	Rear	10.5"
1983	Chevrolet	K20	Rear	10.5"
1983	Chevrolet	K30	Rear	10.5"
1983	Chevrolet	P20	Rear	10.5"
1983	Chevrolet	P30	Rear	10.5"
1983	GMC	C2500	Rear	10.5"
1983	GMC	C3500	Rear	10.5"
1983	GMC	G2500	Rear	10.5"
1983	GMC	G3500	Rear	10.5"
1983	GMC	K2500	Rear	10.5"
1983	GMC	K3500	Rear	10.5"
1983	GMC	P2500	Rear	10.5"
1983	GMC	P3500	Rear	10.5"
1982	Chevrolet	C20	Rear	10.5"
1982	Chevrolet	C30	Rear	10.5"
1982	Chevrolet	G20	Rear	10.5"
1982	Chevrolet	G30	Rear	10.5"
1982	Chevrolet	K20	Rear	10.5"
1982	Chevrolet	K30	Rear	10.5"
1982	Chevrolet	P20	Rear	10.5"
1982	Chevrolet	P30	Rear	10.5"
1982	GMC	C2500	Rear	10.5"
1982	GMC	C3500	Rear	10.5"
1982	GMC	G2500	Rear	10.5"
1982	GMC	G3500	Rear	10.5"
1982	GMC	K2500	Rear	10.5"
1982	GMC	K3500	Rear	10.5"
1982	GMC	P2500	Rear	10.5"
1982	GMC	P3500	Rear	10.5"
1981	Chevrolet	C20	Rear	10.5"
1981	Chevrolet	C30	Rear	10.5"
1981	Chevrolet	G20	Rear	10.5"
1981	Chevrolet	G30	Rear	10.5"
1981	Chevrolet	K20	Rear	10.5"
1981	Chevrolet	K30	Rear	10.5"
1981	Chevrolet	P20	Rear	10.5"
1981	Chevrolet	P30	Rear	10.5"
1981	GMC	C2500	Rear	10.5"
1981	GMC	C3500	Rear	10.5"
1981	GMC	G2500	Rear	10.5"
1981	GMC	G3500	Rear	10.5"
1981	GMC	K2500	Rear	10.5"
1981	GMC	K3500	Rear	10.5"
1981	GMC	P2500	Rear	10.5"
1981	GMC	P3500	Rear	10.5"
1980	Chevrolet	C20	Rear	10.5"
1980	Chevrolet	C30	Rear	10.5"
1980	Chevrolet	G20	Rear	10.5"
1980	Chevrolet	G30	Rear	10.5"
1980	Chevrolet	K20	Rear	10.5"
1980	Chevrolet	K30	Rear	10.5"
1980	Chevrolet	P20	Rear	10.5"
1980	Chevrolet	P30	Rear	10.5"
1980	GMC	C2500	Rear	10.5"
1980	GMC	C3500	Rear	10.5"
1980	GMC	G2500	Rear	10.5"
1980	GMC	G3500	Rear	10.5"
1980	GMC	K2500	Rear	10.5"
1980	GMC	K3500	Rear	10.5"
1980	GMC	P2500	Rear	10.5"
1980	GMC	P3500	Rear	10.5"
1979	Chevrolet	C20	Rear	10.5"
1979	Chevrolet	C30	Rear	10.5"
1979	Chevrolet	G20	Rear	10.5"
1979	Chevrolet	G30	Rear	10.5"
1979	Chevrolet	K20	Rear	10.5"
1979	Chevrolet	K30	Rear	10.5"
1979	Chevrolet	P20	Rear	10.5"
1979	Chevrolet	P30	Rear	10.5"
1979	GMC	C2500	Rear	10.5"
1979	GMC	C3500	Rear	10.5"
1979	GMC	G2500	Rear	10.5"
1979	GMC	G3500	Rear	10.5"
1979	GMC	K2500	Rear	10.5"
1979	GMC	K3500	Rear	10.5"
1979	GMC	P2500	Rear	10.5"
1979	GMC	P3500	Rear	10.5"
1978	Chevrolet	C20	Rear	10.5"
1978	Chevrolet	C30	Rear	10.5"
1978	Chevrolet	G20	Rear	10.5"
1978	Chevrolet	G30	Rear	10.5"
1978	Chevrolet	K20	Rear	10.5"
1978	Chevrolet	K30	Rear	10.5"
1978	Chevrolet	P20	Rear	10.5"
1978	Chevrolet	P30	Rear	10.5"
1978	GMC	G25	Rear	10.5"
1978	GMC	G35	Rear	10.5"
1977	Chevrolet	C20	Rear	10.5"
1977	Chevrolet	C30	Rear	10.5"
1977	Chevrolet	G20	Rear	10.5"
1977	Chevrolet	G30	Rear	10.5"
1977	Chevrolet	K20	Rear	10.5"
1977	Chevrolet	K30	Rear	10.5"
1977	Chevrolet	P20	Rear	10.5"
1977	Chevrolet	P30	Rear	10.5"
1977	GMC	G25	Rear	10.5"
1977	GMC	G35	Rear	10.5"
1976	Chevrolet	C20	Rear	10.5"
1976	Chevrolet	C30	Rear	10.5"
1976	Chevrolet	G20	Rear	10.5"
1976	Chevrolet	G30	Rear	10.5"
1976	Chevrolet	K20	Rear	10.5"
1976	Chevrolet	P20	Rear	10.5"
1976	Chevrolet	P30	Rear	10.5"
1976	GMC	G25	Rear	10.5"
1976	GMC	G35	Rear	10.5"
1975	Chevrolet	C20	Rear	10.5"
1975	Chevrolet	C30	Rear	10.5"
1975	Chevrolet	G20	Rear	10.5"
1975	Chevrolet	G30	Rear	10.5"
1975	Chevrolet	K20	Rear	10.5"
1975	Chevrolet	P20	Rear	10.5"
1975	Chevrolet	P30	Rear	10.5"
1975	GMC	G25	Rear	10.5"
1975	GMC	G35	Rear	10.5"
1974	GMC	G25/G2500 Van	Rear	10.5"
1973	GMC	G25/G2500 Van	Rear	10.5"

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

4620043100DRK325MKSDK325-MK

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.