Luk GDK325A-MK Axle Differential Bearing and Seal Kit - Rear

Name: Luk GDK325A-MK Axle Differential Bearing and Seal Kit - Rear
Brand: Luk
SKU: BBZH-GDK325A-MK
Price: 326.90 USD
Availability: InStock

Rear

⚙️ 166 vehicles fit this part

🔍

Select your vehicle to confirm fitment

Verify this part fits before purchasing — free returns if it doesn't

$326.90Free Shipping

🚚Free ShippingNo Cost to Continental U.S.

🔄Free Returns*Wrong fit? No cost

🛡️60-Day ReturnsMoney back guarantee

*Free return shipping only qualifies if our fitment verification tool is used.

🔥

✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.

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

🚗Fitment: Chevrolet and GMC, C2500, C3500, Express 2500, Express 3500, G20, G2500, G30, G3500, K2500, K3500, P20, P2500, P30, P3500, R20, R2500, R30, R3500, Savana 2500, Savana 3500, V30, and V3500

🔄Easy Returns — Return within 60 days for a full refund

🚚Fast Shipping — Most orders ship same business day before 1pm CST

Not what you need? Click here for all Axle Differential Bearing and Seal Kit options

OE-Quality Differential Bearing Kit

The LuK GDK325A-MK differential bearing kit provides the OE-quality bearings needed for a professional rear axle repair. It is built for service work on the 10.5-inch rear differential used in a wide range of Chevrolet and GMC trucks, vans, and chassis applications.

Fits 1988-1997 Chevrolet C2500, rear; Fits 1988-1997 Chevrolet C3500, rear; Fits 1988-1997 GMC C2500, rear; Fits 1988-1997 GMC C3500, rear; Fits 1988-1997 Chevrolet K2500, rear; Fits 1988-1997 Chevrolet K3500, rear; Fits 1988-1997 GMC K2500, rear; Fits 1988-1997 GMC K3500, rear.

LuK differential bearing kit for rear axle service
OE-quality bearing components selected for the specific transmission/differential application
Direct repair solution for 10.5-inch rear differential service
Cross-references SKF SDK325-AMK for the same application
Part number: GDK325A-MK

Application Details

This kit is used in rear differential bearing service on Chevrolet C2500, Chevrolet C3500, GMC C2500, and GMC C3500 models, along with additional Chevrolet and GMC truck, van, and chassis applications listed in the fitment data. It also covers 1988-1997 Chevrolet K2500 and K3500, rear, plus 1988-1997 GMC K2500 and K3500, rear, for 10.5-inch axle configurations.

Part number GDK325A-MK is a practical choice when rebuilding the rear differential on heavy-duty Chevrolet and GMC platforms that require OE-quality bearing replacement.

What It Helps Repair

Rear differential bearing noise
Excessive bearing wear during axle service
Rough operation from damaged differential bearings
Repair needs on 10.5-inch rear axle assemblies
Service work on high-mileage Chevrolet and GMC driveline components

Installation Notes

Confirm axle size and design before ordering, since fitment includes 10.5-inch rear applications and some 1988 models marked as 2nd Design. Professional differential setup is recommended after bearing replacement to verify proper preload and gear contact pattern.

Quality Assurance

LuK states that each differential bearing kit is assembled with OE-quality components selected for the specific transmission or differential application, supporting a professional-grade repair standard.

This part fits 166 vehicles. Search below:

Year	Make	Model	Position	Notes
1997	Chevrolet	C2500	Rear	10.5"
1997	Chevrolet	C3500	Rear	10.5"
1997	Chevrolet	Express 2500	Rear	10.5"
1997	Chevrolet	Express 3500	Rear	10.5"
1997	Chevrolet	K2500	Rear	10.5"
1997	Chevrolet	K3500	Rear	10.5"
1997	Chevrolet	P30	Rear	10.5"
1997	GMC	C2500	Rear	10.5"
1997	GMC	C3500	Rear	10.5"
1997	GMC	K2500	Rear	10.5"
1997	GMC	K3500	Rear	10.5"
1997	GMC	P3500	Rear	10.5"
1997	GMC	Savana 2500	Rear	10.5"
1997	GMC	Savana 3500	Rear	10.5"
1996	Chevrolet	C2500	Rear	10.5"
1996	Chevrolet	C3500	Rear	10.5"
1996	Chevrolet	Express 2500	Rear	10.5"
1996	Chevrolet	Express 3500	Rear	10.5"
1996	Chevrolet	G30	Rear	10.5"
1996	Chevrolet	K2500	Rear	10.5"
1996	Chevrolet	K3500	Rear	10.5"
1996	Chevrolet	P30	Rear	10.5"
1996	GMC	C2500	Rear	10.5"
1996	GMC	C3500	Rear	10.5"
1996	GMC	G3500	Rear	10.5"
1996	GMC	K2500	Rear	10.5"
1996	GMC	K3500	Rear	10.5"
1996	GMC	P3500	Rear	10.5"
1996	GMC	Savana 2500	Rear	10.5"
1996	GMC	Savana 3500	Rear	10.5"
1995	Chevrolet	C2500	Rear	10.5"
1995	Chevrolet	C3500	Rear	10.5"
1995	Chevrolet	G20	Rear	10.5"
1995	Chevrolet	G30	Rear	10.5"
1995	Chevrolet	K2500	Rear	10.5"
1995	Chevrolet	K3500	Rear	10.5"
1995	Chevrolet	P30	Rear	10.5"
1995	GMC	C2500	Rear	10.5"
1995	GMC	C3500	Rear	10.5"
1995	GMC	G2500	Rear	10.5"
1995	GMC	G3500	Rear	10.5"
1995	GMC	K2500	Rear	10.5"
1995	GMC	K3500	Rear	10.5"
1995	GMC	P3500	Rear	10.5"
1994	Chevrolet	C2500	Rear	10.5"
1994	Chevrolet	C3500	Rear	10.5"
1994	Chevrolet	G20	Rear	10.5"
1994	Chevrolet	G30	Rear	10.5"
1994	Chevrolet	K2500	Rear	10.5"
1994	Chevrolet	K3500	Rear	10.5"
1994	Chevrolet	P30	Rear	10.5"
1994	GMC	C2500	Rear	10.5"
1994	GMC	C3500	Rear	10.5"
1994	GMC	G2500	Rear	10.5"
1994	GMC	G3500	Rear	10.5"
1994	GMC	K2500	Rear	10.5"
1994	GMC	K3500	Rear	10.5"
1994	GMC	P3500	Rear	10.5"
1993	Chevrolet	C2500	Rear	10.5"
1993	Chevrolet	C3500	Rear	10.5"
1993	Chevrolet	G20	Rear	10.5"
1993	Chevrolet	G30	Rear	10.5"
1993	Chevrolet	K2500	Rear	10.5"
1993	Chevrolet	K3500	Rear	10.5"
1993	Chevrolet	P30	Rear	10.5"
1993	GMC	C2500	Rear	10.5"
1993	GMC	C3500	Rear	10.5"
1993	GMC	G2500	Rear	10.5"
1993	GMC	G3500	Rear	10.5"
1993	GMC	K2500	Rear	10.5"
1993	GMC	K3500	Rear	10.5"
1993	GMC	P3500	Rear	10.5"
1992	Chevrolet	C2500	Rear	10.5"
1992	Chevrolet	C3500	Rear	10.5"
1992	Chevrolet	G20	Rear	10.5"
1992	Chevrolet	G30	Rear	10.5"
1992	Chevrolet	K2500	Rear	10.5"
1992	Chevrolet	K3500	Rear	10.5"
1992	Chevrolet	P30	Rear	10.5"
1992	GMC	C2500	Rear	10.5"
1992	GMC	C3500	Rear	10.5"
1992	GMC	G2500	Rear	10.5"
1992	GMC	G3500	Rear	10.5"
1992	GMC	K2500	Rear	10.5"
1992	GMC	K3500	Rear	10.5"
1992	GMC	P3500	Rear	10.5"
1991	Chevrolet	C2500	Rear	10.5"
1991	Chevrolet	C3500	Rear	10.5"
1991	Chevrolet	G20	Rear	10.5"
1991	Chevrolet	G30	Rear	10.5"
1991	Chevrolet	K2500	Rear	10.5"
1991	Chevrolet	K3500	Rear	10.5"
1991	Chevrolet	P30	Rear	10.5"
1991	Chevrolet	R3500	Rear	10.5"
1991	Chevrolet	V3500	Rear	10.5"
1991	GMC	C2500	Rear	10.5"
1991	GMC	C3500	Rear	10.5"
1991	GMC	G2500	Rear	10.5"
1991	GMC	G3500	Rear	10.5"
1991	GMC	K2500	Rear	10.5"
1991	GMC	K3500	Rear	10.5"
1991	GMC	P3500	Rear	10.5"
1991	GMC	R3500	Rear	10.5"
1991	GMC	V3500	Rear	10.5"
1990	Chevrolet	C2500	Rear	10.5"
1990	Chevrolet	C3500	Rear	10.5"
1990	Chevrolet	G20	Rear	10.5"
1990	Chevrolet	G30	Rear	10.5"
1990	Chevrolet	K2500	Rear	10.5"
1990	Chevrolet	K3500	Rear	10.5"
1990	Chevrolet	P30	Rear	10.5"
1990	Chevrolet	R3500	Rear	10.5"
1990	Chevrolet	V3500	Rear	10.5"
1990	GMC	C2500	Rear	10.5"
1990	GMC	C3500	Rear	10.5"
1990	GMC	G2500	Rear	10.5"
1990	GMC	G3500	Rear	10.5"
1990	GMC	K2500	Rear	10.5"
1990	GMC	K3500	Rear	10.5"
1990	GMC	P3500	Rear	10.5"
1990	GMC	R3500	Rear	10.5"
1990	GMC	V3500	Rear	10.5"
1989	Chevrolet	C2500	Rear	10.5"
1989	Chevrolet	C3500	Rear	10.5"
1989	Chevrolet	G20	Rear	10.5"
1989	Chevrolet	G30	Rear	10.5"
1989	Chevrolet	K2500	Rear	10.5"
1989	Chevrolet	K3500	Rear	10.5"
1989	Chevrolet	P20	Rear	10.5"
1989	Chevrolet	P30	Rear	10.5"
1989	Chevrolet	R2500	Rear	10.5"
1989	Chevrolet	R3500	Rear	10.5"
1989	Chevrolet	V3500	Rear	10.5"
1989	GMC	C2500	Rear	10.5"
1989	GMC	C3500	Rear	10.5"
1989	GMC	G2500	Rear	10.5"
1989	GMC	G3500	Rear	10.5"
1989	GMC	K2500	Rear	10.5"
1989	GMC	K3500	Rear	10.5"
1989	GMC	P2500	Rear	10.5"
1989	GMC	P3500	Rear	10.5"
1989	GMC	R2500	Rear	10.5"
1989	GMC	R3500	Rear	10.5"
1989	GMC	V3500	Rear	10.5"
1988	Chevrolet	C2500	Rear	10.5" 2nd Design
1988	Chevrolet	C3500	Rear	10.5" 2nd Design
1988	Chevrolet	G20	Rear	10.5" 2nd Design
1988	Chevrolet	G30	Rear	10.5" 2nd Design
1988	Chevrolet	K2500	Rear	10.5" 2nd Design
1988	Chevrolet	K3500	Rear	10.5" 2nd Design
1988	Chevrolet	P20	Rear	10.5" 2nd Design
1988	Chevrolet	P30	Rear	10.5" 2nd Design
1988	Chevrolet	R20	Rear	10.5" 2nd Design
1988	Chevrolet	R30	Rear	10.5" 2nd Design
1988	Chevrolet	V30	Rear	10.5" 2nd Design
1988	GMC	C2500	Rear	10.5" 2nd Design
1988	GMC	C3500	Rear	10.5" 2nd Design
1988	GMC	G2500	Rear	10.5" 2nd Design
1988	GMC	G3500	Rear	10.5" 2nd Design
1988	GMC	K2500	Rear	10.5" 2nd Design
1988	GMC	K3500	Rear	10.5" 2nd Design
1988	GMC	P2500	Rear	10.5" 2nd Design
1988	GMC	P3500	Rear	10.5" 2nd Design
1988	GMC	R2500	Rear	10.5" 2nd Design
1988	GMC	R3500	Rear	10.5" 2nd Design
1988	GMC	V3500	Rear	10.5" 2nd Design

* 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:

4620072100DRK325AMKRA325AMKSDK325-AMK

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