Luk GDK325B Axle Differential Bearing and Seal Kit - Rear

Name: Luk GDK325B Axle Differential Bearing and Seal Kit - Rear
Brand: Luk
SKU: BBZH-GDK325B
Price: 290.40 USD
Availability: InStock

Rear

⚙️ 212 vehicles fit this part

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

🚗Fitment: Chevrolet and GMC, Avalanche 2500, C2500, C3500, Express 2500, Express 3500, K2500, K3500, P30, P3500, Savana 2500, Savana 3500, Sierra 2500, Sierra 2500 HD, Sierra 3500 HD, Silverado 2500, Silverado 2500 HD, Silverado 3500 HD, Suburban 2500, Suburban 3500 HD, and Yukon XL 2500

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

OE-Quality Differential Bearing Kit

The LuK GDK325B differential bearing kit provides the OE-quality bearings needed for a professional rear differential repair. It is built for service on a wide range of Chevrolet and GMC trucks and vans with the 10.5-inch rear differential, including Silverado 2500 HD, Sierra 2500 HD, Express, and Savana applications.

Use this kit when servicing the rear differential on 1998-2023 Chevrolet and GMC platforms. The GDK325B is selected for direct repair work where bearing wear, noise, or drivetrain roughness has affected differential operation.

OE-quality differential bearing kit for rear axle service
Fits rear 10.5-inch differential applications on select Chevrolet and GMC vehicles
Supports professional transmission and driveline repair work
LuK part number GDK325B for easy identification
Cross-references Timken DRK325B and SKF SDK325-B for the same application

Compatible Vehicle Applications

Fits 2021-2023 Chevrolet Express 2500, rear, Standard Differential Kit
Fits 2021-2023 Chevrolet Express 3500, rear, Standard Differential Kit
Fits 2021-2023 GMC Savana 2500, rear, Standard Differential Kit
Fits 2021-2023 GMC Savana 3500, rear, Standard Differential Kit
Fits 1998-2020 Chevrolet Express 2500, rear, 10.5"
Fits 1998-2020 Chevrolet Express 3500, rear, 10.5"
Fits 1998-2020 GMC Savana 2500, rear, 10.5"
Fits 1998-2020 GMC Savana 3500, rear, 10.5"
Fits 2019 Chevrolet Suburban 3500 HD, rear, 10.5"
Fits 2016-2017 Chevrolet Suburban 3500 HD, rear, 10.5"
Fits 2001-2017 Chevrolet Silverado 2500 HD, rear, 10.5"
Fits 2011-2017 Chevrolet Silverado 3500 HD, rear, 10.5"
Fits 2001-2017 GMC Sierra 2500 HD, rear, 10.5"
Fits 2011-2017 GMC Sierra 3500 HD, rear, 10.5"
Fits 2008-2013 Chevrolet Suburban 2500, rear, 10.5"
Fits 2008-2013 GMC Yukon XL 2500, rear, 10.5"
Fits 2002-2006 Chevrolet Avalanche 2500, rear, 10.5"
Fits 1999-2004 Chevrolet Silverado 2500, rear, 10.5"
Fits 1999-2004 GMC Sierra 2500, rear, 10.5"
Fits 1998-2000 Chevrolet C2500, rear, 10.5"
Fits 1998-2000 Chevrolet C3500, rear, 10.5"
Fits 1998-2000 Chevrolet K2500, rear, 10.5"
Fits 1998-2000 Chevrolet K3500, rear, 10.5"
Fits 1998-2000 GMC C2500, rear, 10.5"
Fits 1998-2000 GMC C3500, rear, 10.5"
Fits 1998-2000 GMC K2500, rear, 10.5"
Fits 1998-2000 GMC K3500, rear, 10.5"
Fits 1998-1999 Chevrolet P30, rear, 10.5"
Fits 1998-1999 GMC P3500, rear, 10.5"

What This Kit Helps Address

Rear differential bearing noise
Excessive play or looseness in the differential assembly
Wear found during axle or transmission service
Restoration work on high-mileage driveline components
Repair needs on 10.5-inch rear differential setups

Installation Notes

Confirm rear axle configuration and differential size before ordering. This kit is for rear applications only and should be matched to the vehicle’s 10.5-inch differential where listed. Professional installation and setup are recommended for differential service, including proper inspection of related wear surfaces and bearing seats.

Quality Assurance

LuK selects OE-quality components for each specific transmission and differential application to support professional repair standards. The GDK325B is built as a service kit for accurate replacement work on the listed Chevrolet and GMC vehicles.

This part fits 212 vehicles. Search below:

Year	Make	Model	Position	Notes
2023	Chevrolet	Express 2500	Rear	Standard Differential Kit
2023	Chevrolet	Express 3500	Rear	Standard Differential Kit
2023	GMC	Savana 2500	Rear	Standard Differential Kit
2023	GMC	Savana 3500	Rear	Standard Differential Kit
2022	Chevrolet	Express 2500	Rear	Standard Differential Kit
2022	Chevrolet	Express 3500	Rear	Standard Differential Kit
2022	GMC	Savana 2500	Rear	Standard Differential Kit
2022	GMC	Savana 3500	Rear	Standard Differential Kit
2021	Chevrolet	Express 2500	Rear	Standard Differential Kit
2021	Chevrolet	Express 3500	Rear	Standard Differential Kit
2021	GMC	Savana 2500	Rear	Standard Differential Kit
2021	GMC	Savana 3500	Rear	Standard Differential Kit
2020	Chevrolet	Express 2500	Rear	10.5"
2020	Chevrolet	Express 3500	Rear	10.5"
2020	GMC	Savana 2500	Rear	10.5"
2020	GMC	Savana 3500	Rear	10.5"
2019	Chevrolet	Express 2500	Rear	10.5"
2019	Chevrolet	Express 3500	Rear	10.5"
2019	Chevrolet	Suburban 3500 HD	Rear	10.5"
2019	GMC	Savana 2500	Rear	10.5"
2019	GMC	Savana 3500	Rear	10.5"
2018	Chevrolet	Express 2500	Rear	10.5"
2018	Chevrolet	Express 3500	Rear	10.5"
2018	GMC	Savana 2500	Rear	10.5"
2018	GMC	Savana 3500	Rear	10.5"
2017	Chevrolet	Express 2500	Rear	10.5"
2017	Chevrolet	Express 3500	Rear	10.5"
2017	Chevrolet	Silverado 2500 HD	Rear	10.5"
2017	Chevrolet	Silverado 3500 HD	Rear	10.5"
2017	Chevrolet	Suburban 3500 HD	Rear	10.5"
2017	GMC	Savana 2500	Rear	10.5"
2017	GMC	Savana 3500	Rear	10.5"
2017	GMC	Sierra 2500 HD	Rear	10.5"
2017	GMC	Sierra 3500 HD	Rear	10.5"
2016	Chevrolet	Express 2500	Rear	10.5"
2016	Chevrolet	Express 3500	Rear	10.5"
2016	Chevrolet	Silverado 2500 HD	Rear	10.5"
2016	Chevrolet	Silverado 3500 HD	Rear	10.5"
2016	Chevrolet	Suburban 3500 HD	Rear	10.5"
2016	GMC	Savana 2500	Rear	10.5"
2016	GMC	Savana 3500	Rear	10.5"
2016	GMC	Sierra 2500 HD	Rear	10.5"
2016	GMC	Sierra 3500 HD	Rear	10.5"
2015	Chevrolet	Express 2500	Rear	10.5"
2015	Chevrolet	Express 3500	Rear	10.5"
2015	Chevrolet	Silverado 2500 HD	Rear	10.5"
2015	Chevrolet	Silverado 3500 HD	Rear	10.5"
2015	GMC	Savana 2500	Rear	10.5"
2015	GMC	Savana 3500	Rear	10.5"
2015	GMC	Sierra 2500 HD	Rear	10.5"
2015	GMC	Sierra 3500 HD	Rear	10.5"
2014	Chevrolet	Express 2500	Rear	10.5"
2014	Chevrolet	Express 3500	Rear	10.5"
2014	Chevrolet	Silverado 2500 HD	Rear	10.5"
2014	Chevrolet	Silverado 3500 HD	Rear	10.5"
2014	GMC	Savana 2500	Rear	10.5"
2014	GMC	Savana 3500	Rear	10.5"
2014	GMC	Sierra 2500 HD	Rear	10.5"
2014	GMC	Sierra 3500 HD	Rear	10.5"
2013	Chevrolet	Express 2500	Rear	10.5"
2013	Chevrolet	Express 3500	Rear	10.5"
2013	Chevrolet	Silverado 2500 HD	Rear	10.5"
2013	Chevrolet	Silverado 3500 HD	Rear	10.5"
2013	Chevrolet	Suburban 2500	Rear	10.5"
2013	GMC	Savana 2500	Rear	10.5"
2013	GMC	Savana 3500	Rear	10.5"
2013	GMC	Sierra 2500 HD	Rear	10.5"
2013	GMC	Sierra 3500 HD	Rear	10.5"
2013	GMC	Yukon XL 2500	Rear	10.5"
2012	Chevrolet	Express 2500	Rear	10.5"
2012	Chevrolet	Express 3500	Rear	10.5"
2012	Chevrolet	Silverado 2500 HD	Rear	10.5"
2012	Chevrolet	Silverado 3500 HD	Rear	10.5"
2012	Chevrolet	Suburban 2500	Rear	10.5"
2012	GMC	Savana 2500	Rear	10.5"
2012	GMC	Savana 3500	Rear	10.5"
2012	GMC	Sierra 2500 HD	Rear	10.5"
2012	GMC	Sierra 3500 HD	Rear	10.5"
2012	GMC	Yukon XL 2500	Rear	10.5"
2011	Chevrolet	Express 2500	Rear	10.5"
2011	Chevrolet	Express 3500	Rear	10.5"
2011	Chevrolet	Silverado 2500 HD	Rear	10.5"
2011	Chevrolet	Silverado 3500 HD	Rear	10.5"
2011	Chevrolet	Suburban 2500	Rear	10.5"
2011	GMC	Savana 2500	Rear	10.5"
2011	GMC	Savana 3500	Rear	10.5"
2011	GMC	Sierra 2500 HD	Rear	10.5"
2011	GMC	Sierra 3500 HD	Rear	10.5"
2011	GMC	Yukon XL 2500	Rear	10.5"
2010	Chevrolet	Express 2500	Rear	10.5"
2010	Chevrolet	Express 3500	Rear	10.5"
2010	Chevrolet	Silverado 2500 HD	Rear	10.5"
2010	Chevrolet	Suburban 2500	Rear	10.5"
2010	GMC	Savana 2500	Rear	10.5"
2010	GMC	Savana 3500	Rear	10.5"
2010	GMC	Sierra 2500 HD	Rear	10.5"
2010	GMC	Yukon XL 2500	Rear	10.5"
2009	Chevrolet	Express 2500	Rear	10.5"
2009	Chevrolet	Express 3500	Rear	10.5"
2009	Chevrolet	Silverado 2500 HD	Rear	10.5"
2009	Chevrolet	Suburban 2500	Rear	10.5"
2009	GMC	Savana 2500	Rear	10.5"
2009	GMC	Savana 3500	Rear	10.5"
2009	GMC	Sierra 2500 HD	Rear	10.5"
2009	GMC	Yukon XL 2500	Rear	10.5"
2008	Chevrolet	Express 2500	Rear	10.5"
2008	Chevrolet	Express 3500	Rear	10.5"
2008	Chevrolet	Silverado 2500 HD	Rear	10.5"
2008	Chevrolet	Suburban 2500	Rear	10.5"
2008	GMC	Savana 2500	Rear	10.5"
2008	GMC	Savana 3500	Rear	10.5"
2008	GMC	Sierra 2500 HD	Rear	10.5"
2008	GMC	Yukon XL 2500	Rear	10.5"
2007	Chevrolet	Express 2500	Rear	10.5"
2007	Chevrolet	Express 3500	Rear	10.5"
2007	Chevrolet	Silverado 2500 HD	Rear	10.5"
2007	GMC	Savana 2500	Rear	10.5"
2007	GMC	Savana 3500	Rear	10.5"
2007	GMC	Sierra 2500 HD	Rear	10.5"
2006	Chevrolet	Avalanche 2500	Rear	10.5"
2006	Chevrolet	Express 2500	Rear	10.5"
2006	Chevrolet	Express 3500	Rear	10.5"
2006	Chevrolet	Silverado 2500 HD	Rear	10.5"
2006	GMC	Savana 2500	Rear	10.5"
2006	GMC	Savana 3500	Rear	10.5"
2006	GMC	Sierra 2500 HD	Rear	10.5"
2005	Chevrolet	Avalanche 2500	Rear	10.5"
2005	Chevrolet	Express 2500	Rear	10.5"
2005	Chevrolet	Express 3500	Rear	10.5"
2005	Chevrolet	Silverado 2500 HD	Rear	10.5"
2005	GMC	Savana 2500	Rear	10.5"
2005	GMC	Savana 3500	Rear	10.5"
2005	GMC	Sierra 2500 HD	Rear	10.5"
2004	Chevrolet	Avalanche 2500	Rear	10.5"
2004	Chevrolet	Express 2500	Rear	10.5"
2004	Chevrolet	Express 3500	Rear	10.5"
2004	Chevrolet	Silverado 2500	Rear	10.5"
2004	Chevrolet	Silverado 2500 HD	Rear	10.5"
2004	GMC	Savana 2500	Rear	10.5"
2004	GMC	Savana 3500	Rear	10.5"
2004	GMC	Sierra 2500	Rear	10.5"
2004	GMC	Sierra 2500 HD	Rear	10.5"
2003	Chevrolet	Avalanche 2500	Rear	10.5"
2003	Chevrolet	Express 2500	Rear	10.5"
2003	Chevrolet	Express 3500	Rear	10.5"
2003	Chevrolet	Silverado 2500	Rear	10.5"
2003	Chevrolet	Silverado 2500 HD	Rear	10.5"
2003	GMC	Savana 2500	Rear	10.5"
2003	GMC	Savana 3500	Rear	10.5"
2003	GMC	Sierra 2500	Rear	10.5"
2003	GMC	Sierra 2500 HD	Rear	10.5"
2002	Chevrolet	Avalanche 2500	Rear	10.5"
2002	Chevrolet	Express 2500	Rear	10.5"
2002	Chevrolet	Express 3500	Rear	10.5"
2002	Chevrolet	Silverado 2500	Rear	10.5"
2002	Chevrolet	Silverado 2500 HD	Rear	10.5"
2002	GMC	Savana 2500	Rear	10.5"
2002	GMC	Savana 3500	Rear	10.5"
2002	GMC	Sierra 2500	Rear	10.5"
2002	GMC	Sierra 2500 HD	Rear	10.5"
2001	Chevrolet	Express 2500	Rear	10.5"
2001	Chevrolet	Express 3500	Rear	10.5"
2001	Chevrolet	Silverado 2500	Rear	10.5"
2001	Chevrolet	Silverado 2500 HD	Rear	10.5"
2001	GMC	Savana 2500	Rear	10.5"
2001	GMC	Savana 3500	Rear	10.5"
2001	GMC	Sierra 2500	Rear	10.5"
2001	GMC	Sierra 2500 HD	Rear	10.5"
2000	Chevrolet	C2500	Rear	10.5"
2000	Chevrolet	C3500	Rear	10.5"
2000	Chevrolet	Express 2500	Rear	10.5"
2000	Chevrolet	Express 3500	Rear	10.5"
2000	Chevrolet	K2500	Rear	10.5"
2000	Chevrolet	K3500	Rear	10.5"
2000	Chevrolet	Silverado 2500	Rear	10.5"
2000	GMC	C2500	Rear	10.5"
2000	GMC	C3500	Rear	10.5"
2000	GMC	K2500	Rear	10.5"
2000	GMC	K3500	Rear	10.5"
2000	GMC	Savana 2500	Rear	10.5"
2000	GMC	Savana 3500	Rear	10.5"
2000	GMC	Sierra 2500	Rear	10.5"
1999	Chevrolet	C2500	Rear	10.5"
1999	Chevrolet	C3500	Rear	10.5"
1999	Chevrolet	Express 2500	Rear	10.5"
1999	Chevrolet	Express 3500	Rear	10.5"
1999	Chevrolet	K2500	Rear	10.5"
1999	Chevrolet	K3500	Rear	10.5"
1999	Chevrolet	P30	Rear	10.5"
1999	Chevrolet	Silverado 2500	Rear	10.5"
1999	GMC	C2500	Rear	10.5"
1999	GMC	C3500	Rear	10.5"
1999	GMC	K2500	Rear	10.5"
1999	GMC	K3500	Rear	10.5"
1999	GMC	P3500	Rear	10.5"
1999	GMC	Savana 2500	Rear	10.5"
1999	GMC	Savana 3500	Rear	10.5"
1999	GMC	Sierra 2500	Rear	10.5"
1998	Chevrolet	C2500	Rear	10.5"
1998	Chevrolet	C3500	Rear	10.5"
1998	Chevrolet	Express 2500	Rear	10.5"
1998	Chevrolet	Express 3500	Rear	10.5"
1998	Chevrolet	K2500	Rear	10.5"
1998	Chevrolet	K3500	Rear	10.5"
1998	Chevrolet	P30	Rear	10.5"
1998	GMC	C2500	Rear	10.5"
1998	GMC	C3500	Rear	10.5"
1998	GMC	K2500	Rear	10.5"
1998	GMC	K3500	Rear	10.5"
1998	GMC	P3500	Rear	10.5"
1998	GMC	Savana 2500	Rear	10.5"
1998	GMC	Savana 3500	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:

4620041100DRK325BRA325BSDK325-B

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