Take on a differential rebuild with the Timken DRK320A Axle Differential Bearing and Seal Kit, which gathers bearings, a seal and other rebuild components into a single kit. It serves as a direct-fit replacement for many vehicles, among them the 2002-2005 Chevrolet Trailblazer and 1990-2005 Chevrolet Astro. See the Buyer's Guide tab for the full list and engine details. The catalog lists this kit for both front and rear differential positions, depending on the vehicle.
Inside the axle, differential bearings support the rotating differential components, and the seal helps keep lubricant in the housing and contaminants out. Signs these parts may need replacing include whining or growling from the axle that changes with vehicle speed, or lubricant seeping from the differential. Diagnose the cause before replacing parts.
Interchange: RA320A · DK320A · SDK320A
This part cross-references / interchanges with the following part numbers:
What comes in the Timken DRK320A kit?
Timken describes it as containing bearings, a seal and other components used to rebuild the differential.
Is this kit for the front or rear differential?
The catalog lists it for both front and rear differential positions, depending on the vehicle. The Buyer's Guide tab shows the listed applications.
What is DT Components?
DT Components is the brand name Timken uses to market its differential, transfer case and transmission rebuild kits.
What is the difference between a standard kit and a master kit?
DT Components rebuild kits come in standard and master kit versions. A part number ending in an MK suffix indicates a master kit.
What are signs the differential bearings or seal may need replacing?
Whining or growling from the axle that changes with speed, or lubricant leaking at the differential, may be signs. Diagnose the cause before replacing parts.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
