Timken DRK321R Axle Differential Bearing and Seal Kit - Rear

Timken DRK321R Differential Bearing Kit

The Timken DRK321R is an axle differential bearing and seal kit for rear driveline service. It is built for differential, transfer case, and transmission rebuild work where the bearings and seals need to be replaced during repair.

• Axle differential bearing and seal kit for rear service applications
• Timken DT Components rebuild kit for driveline repair
• Includes the bearings and seals needed to complete the job
• Standard kit configuration
• Cross-reference: Monroe Shocks & Struts RA321

Application Details

Compatible with rear applications including Fits 1999-2000 Cadillac Escalade, rear, 8.6 in. ring gear; Fits 1996-1998 Isuzu Hombre, rear, 8.5 in. ring gear; and Fits 1970-1981 Chevrolet Camaro, rear, for manual transmission 8.5 inch ring gear and transfer case output shaft differential pinion bearing service. The DRK321R part number is also listed under interchange RA321.

What It Helps Repair

• Rear differential bearing noise
• Seal leakage at the axle or differential
• Wear found during differential rebuilds
• Service needs on transfer case output shaft bearing areas
• Transmission-related pinion bearing replacement on listed applications

Installation Notes

Verify ring gear size, drivetrain configuration, and rear axle application before installation. Match the bearing and seal locations to the original components during teardown, and inspect related races and shafts for wear before reassembly. Confirm fitment by vehicle year, make, model, and notes before ordering the DRK321R.

Quality Assurance

Timken markets these rebuild kits through the DT Components line, which is used for differential, transfer case, and transmission service parts. The DRK321R follows the standard kit format for bearing and seal replacement in the listed applications.