Timken 3920 Differential Race - Front, Rear, Rear Inner or Rear Outer

Timken 3920 Differential Race Overview

The Timken 3920 differential race is a tapered roller bearing cup built for rear axle service in a wide range of heavy-duty trucks and vans. It is engineered for applications that carry radial and axial loads, with dimensions that support precise bearing fitment and long service life.

Compatible with rear axle applications on Ram 2500, Ram 3500, Chevrolet Silverado 3500, GMC Sierra 3500, and Ford F-250/F-350 models, Timken 3920 is a direct-fit differential race for select 11.5-inch ring gear and full-float axle setups.

Key Features

• Timken differential race for rear axle bearing service
• Outside diameter: 4.437 in. (112.71 mm)
• Width: 0.938 in. (23.81 mm)
• Bearing cup radius: 0.130 in. (3.30 mm)
• Built for tapered roller bearing assemblies that manage radial and axial loads
• Fits select Ram, Chevrolet, GMC, and Ford heavy-duty driveline applications
• Part number 3920 for easy identification and ordering

Detailed Description

Timken 3920 is a differential race used in rear axle bearing assemblies where accurate cup geometry and durable load handling matter. Timken tapered roller bearing components are known for supporting demanding driveline conditions, and this race is sized for select rear differential applications across Ram 2500 and Ram 3500 trucks, Chevrolet Avalanche 2500 and Silverado 3500, GMC Sierra 3500, and Ford E-250 Econoline, F-250, and F-350 models. The part number 3920 also cross-references SKF BR3920 for the same application.

For reliable service life, the bearing cup should be matched with the corresponding cone during replacement. This helps maintain proper bearing contact and consistent operation in rear axle assemblies.

What It Helps Address

• Rear differential bearing wear
• Noise from a damaged or pitted bearing race
• Improper bearing contact in the axle assembly
• Excessive play caused by worn cup surfaces
• Service needs on heavy-duty rear axle driveline components

Installation Notes and Tips

Verify axle configuration, ring gear size, and position before installation. Fits 2014-2018 Ram 2500, Rear; Fits 2011-2013 Ram 2500, Rear, 11.5 in. Ring Gear; Fits 2002-2006 Chevrolet Avalanche 2500, Rear, 11.5 in. Ring Gear; Fits 2003-2006 Dodge Ram 3500, Rear, 11.5 in. Ring Gear; Fits 2001-2005 Chevrolet Silverado 3500, Rear, 11.5 in. Ring Gear; Fits 2003-2005 Dodge Ram 2500, Rear, 11.5 in. Ring Gear; Fits 2001-2005 GMC Sierra 3500, Rear, 11.5 in. Ring Gear; Fits 2003 Dodge Ram 2500 Van, Rear, 11.5 in. Ring Gear; Fits 2003 Dodge Ram 3500 Van, Rear, 11.5 in. Ring Gear; Fits 1985-1998 Ford E-250 Econoline, Rear Inner, Full Float Axle - 10.25 in. Ring Gear; Fits 1998 Ford F-250, Rear Inner, Full Float Axle - 10.25 in. Ring Gear - From 1/01/1998; Fits 1994-1997 Ford F-250, Rear Inner, Full Floating Axle - 10.25 in. Ring Gear - From 4/01/1994; Fits 1994-1997 Ford F-350, Rear Inner, 10.25 in., 10.5 in. Ring Gear - From 4/1/1994; Fits 1985-1994 Ford F-250, Rear Inner, Full Floating Axle - 10.25 in. Ring Gear - Thru 3/31/1994; Fits 1985-1994 Ford F-350, Rear Inner, 10.25 in. Ring Gear - Thru 3-31-1994; Fits 1985-1991 Ford E-250 Econoline Club Wagon, Rear Inner, Full Float Axle - 10.25 in. Ring Gear.

Quality Assurance

Timken is a recognized global leader in tapered roller bearings, and this differential race reflects that focus on load capacity, durability, and dimensional precision for driveline service.