InMotion WTHM807046 Differential Pinion Bearing - Rear Inner

Rear Inner Differential Pinion Bearing for Heavy-Duty Axles

The InMotion WTHM807046 differential pinion bearing is built for rear inner axle service where stable rotation and low-friction operation matter. It is a taper bearing with a 2 in. inside diameter, 1.437 in. width, and 0.140 in. cone radius for applications that require precise support in the driveline.

Compatible With Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD, Ram 2500, Ram 3500, and other listed rear inner applications, this bearing is used in a wide range of heavy-duty truck and performance axle setups. The WTHM807046 part number is also a useful reference when matching the correct differential pinion bearing for service work.

Key Features

• Part number: WTHM807046
• Brand: InMotion
• Category: Driveline and Axles > Bearings
• Type: Differential pinion bearing
• Bearing style: Taper
• Inside diameter: 2 in. / 50.8 mm
• Width: 1.437 in. / 36.5 mm
• Cone radius: 0.140 in. / 3.6 mm
• Rear inner position for axle service
• Built for smooth rotational support and reduced friction

Detailed Description

InMotion WTHM807046 is a rear inner differential pinion bearing intended for driveline applications that demand consistent support under load. Its tapered bearing design helps maintain rotational stability while supporting the pinion assembly in heavy-duty rear axle systems. This makes it a practical choice for service on Chevrolet Silverado 3500 HD, GMC Sierra 3500 HD, Ram 2500, Ram 3500, Chevrolet Silverado 3500, GMC Sierra 3500, and related rear axle configurations listed in the fitment data.

This part is also listed for applications such as 2012-2015 Chevrolet Camaro rear inner with 9.4 in. ring gear, 2010 Chevrolet Express 3500 rear inner with 11.5 in. ring gear, and 1992-1998 Chevrolet C3500 rear inner with Spicer 80 axle. The WTHM807046 bearing is specified for multiple rear inner setups, making it a direct match for technicians and owners replacing a worn differential pinion bearing.

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

What It Helps Address

• Excessive noise from a worn rear differential pinion bearing
• Rough or inconsistent pinion rotation in the rear axle
• Friction-related wear in driveline bearing surfaces
• Loss of stability in rear inner axle support points
• Service replacement for heavy-duty truck differential maintenance

Installation Notes and Tips

Verify the axle configuration, ring gear size, and rear inner position before installation. This bearing is listed for specific applications including 11.5 in. ring gear and Spicer 80 axle setups, so matching the exact vehicle and axle details is important. Confirm the 2 in. inside diameter, 1.437 in. width, and taper bearing style against the original part before assembly.

For best results, inspect related differential components during service and replace any worn mating parts as needed. Proper bearing preload and setup are critical in pinion service, so follow the vehicle service procedure for the axle being repaired.

Quality Assurance

Crafted from high-quality materials for durability and consistent operation, this bearing is built for use in automotive and industrial environments where dependable rotational support is required. The InMotion WTHM807046 is designed to deliver reliable performance across multiple rear axle applications.