InMotion WT387A Axle Differential Bearing

Axle Differential Bearing for Heavy-Duty Driveline Service

The InMotion WT387A axle differential bearing is built for driveline applications that demand stable rotation, low friction, and consistent support under load. With a cylindrical taper bearing design and precise dimensions, it serves a wide range of rear, front, and inner axle positions across trucks, vans, SUVs, and performance cars.

Compatible with applications such as Ford F-250 Super Duty front axle service, Chevrolet Colorado rear axle service, and Dodge Ram 2500 front axle service, this bearing is selected for direct-fit driveline repair work where correct sizing matters.

Key Features

• Part number: WT387A
• Axle differential bearing for driveline and axle repair
• Taper bearing construction with cylindrical profile
• Inside diameter: 2.25 in. / 57.2 mm
• Width: 0.864 in. / 21.9 mm
• Cone radius: 0.140 in. / 3.6 mm
• Weight: 0.875 lb / 0.397 kg
• Built for smooth rotation, reduced friction, and stable bearing support

Detailed Description

The WT387A is an axle differential bearing designed for a broad range of automotive and industrial driveline uses. Its taper bearing design helps maintain rotational stability while supporting the loads found in axle assemblies, differential setups, and related rotating components. The listed dimensions make it important to verify axle type and position before ordering, especially on vehicles with multiple bearing variants.

This bearing is used across many fitments, including Chevrolet Corvette rear applications, Ford F-350 front inner and rear applications, and Land Rover rear right non-lock-up applications. It also appears in heavy-duty truck and van service, including Ford E-Series, Dodge B-series, and GMC/Chevrolet 3500-series platforms. Part number WT387A is a practical choice when the repair calls for a bearing with the correct inside diameter, width, and cone geometry.

This part cross-references no listed interchange numbers in the provided data.

What It Helps Fix

• Excessive bearing noise from worn axle or differential support
• Rough rotation or drag in the axle assembly
• Play or instability caused by bearing wear
• Heat buildup related to friction in rotating driveline components
• Service issues on rear, front inner, rear outer, and rear right axle positions

Installation Notes and Fitment

Verify axle type, position, and bearing dimensions before installation. This bearing is listed for multiple configurations, so matching the vehicle, axle code, and location is essential for correct service.

• Fits 2015-2018 Chevrolet Colorado, rear, with Spicer M220 Axle
• Fits 2005-2018 Ford F-250 Super Duty, front, with Spicer 60-SF Axle
• Fits 2005-2018 Ford F-350 Super Duty, front, with Spicer 60-SF Axle
• Fits 2015-2018 GMC Canyon, rear, with Spicer M220 Axle
• Fits 2006-2017 Land Rover Range Rover Sport, rear right, Non-Lock-Up
• Fits 2010-2016 Land Rover LR4, rear right, Non-Lock-Up
• Fits 2012-2013 Chevrolet Corvette, rear, with GKN626 Axle
• Fits 2010-2011 Chevrolet Corvette, rear, with Getrag 625 Axle
• Fits 2005-2009 Land Rover LR3, rear right, Non-Lock-Up
• Fits 1994-2002 Dodge Ram 2500, front, with Spicer 60-F Axle
• Fits 1994-2002 Dodge Ram 3500, front, with Spicer 60-F Axle
• Fits 1979-1997 Ford F-350, front inner
• Fits 1964-1972 Ford F-100, rear, with Spicer 60.2 Axle
• Fits 1968-1978 Cadillac Eldorado, N/A, THM425 TransmissionMfrCode

Quality Assurance

InMotion manufactures this bearing from high-quality materials for durable service in automotive and industrial environments. The design focuses on consistent operation, reduced friction, and dependable performance across a wide range of axle applications.

WT387A is specified for broad vehicle coverage, including Ford F-250 Super Duty, Chevrolet Colorado, and Dodge Ram 2500 applications, making it a technical replacement part for driveline repair work where exact fitment is required.