Dorman 797-111 Differential Bearing Kit - Rear

Dorman 797-111 Differential Bearing Kit

Dorman 797-111 is a premium differential bearing kit for rear axle service on select Chevrolet and GMC trucks, vans, and SUVs with a 10.5-inch ring gear. It is built for differential rebuilds where bearing precision, backlash control, and long-term durability matter.

Key Features

• High-precision tapered differential bearings for rear differential service
• Manufactured to tighter tolerances than common lower-grade bearings
• Helps reduce excess backlash under differential torque loads
• Includes bearing races and related setup components for rebuild work
• Designed for 10.5-inch ring gear applications
• Fits rear differential service on Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, and related applications

Detailed Description

This Dorman differential bearing kit is engineered for rear differential rebuilds where bearing fit and rotational stability are critical. The kit uses tapered steel bearings and matching races, with cone and race dimensions listed for application matching: cone inside diameters of 41.28 mm, 44.45 mm, and 57.15 mm, plus cone outside diameters of 82.55 mm, 95.25 mm, and 96.84 mm. It is intended for 10.5-inch ring gear assemblies with a 12-bolt ring gear pattern and a 30-spline pinion configuration. Dorman 797-111 is a practical choice when servicing rear differentials in Chevrolet Silverado 2500 HD, GMC Sierra 2500 HD, Chevrolet Express 2500, and GMC Savana 3500 applications.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

What It Helps Address

• Noise from worn differential bearings
• Excess play or backlash in the rear differential
• Rough bearing surfaces during axle rebuilds
• Loss of bearing preload after service
• Time spent sourcing individual differential components

Installation Notes and Tips

Verify the rear axle configuration, ring gear diameter, and bearing dimensions before installation. Use the included shims, crush collar, gear marking compound, thread lock compound, gasket material, application brush, and hardware as needed during setup. Proper differential setup requires careful preload and backlash adjustment, so follow service specifications for the vehicle and axle assembly.

Quality Assurance

Dorman positions this kit as a premium replacement option with high-precision bearings built to tighter tolerances for differential service. Check fitment details and product attributes before ordering to confirm the correct application for your rear axle.