InMotion WS475458 Wheel Seal - Rear Inner

Rear Inner Differential Pinion Seal for Spicer 60 Axle

InMotion WS475458 is a nitrile wheel seal engineered for the rear inner position on select Dodge trucks equipped with the Spicer 60 axle. It is built to form a secure barrier against moisture and debris while helping maintain a tight seal at the differential pinion area.

For 1975-1976 Dodge B300, D300, and W300 applications, this seal supports leak control and helps protect sensitive internal driveline components from contamination. The InMotion WS475458 is sized for a 2.625-inch shaft diameter and a 3.623-inch housing bore, with a 0.375-inch width and 3.628-inch outside diameter.

Key Features

• Nitrile construction for sealing performance in driveline applications
• Fits rear inner position on Spicer 60 axle setups
• Inside diameter: 2.625 inches
• Shaft diameter: 2.625 inches
• Housing bore: 3.623 inches
• Outside diameter: 3.628 inches
• Width: 0.375 inches
• Part number WS475458 for catalog and search reference

Detailed Description

This InMotion differential pinion seal is designed around the dimensions required for a precise fit at the rear inner location. Its nitrile material helps create a dependable sealing surface that resists contamination intrusion and supports fluid retention in the differential assembly. If you are servicing a 1975 Dodge B300, 1975 Dodge D300, 1976 Dodge W300, or another listed Dodge Spicer 60 axle application, WS475458 provides a direct replacement option built around the correct dimensions.

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

What It Helps Address

• Differential fluid seepage at the pinion seal area
• Contamination from road debris and moisture
• Wear-related sealing loss in the rear inner position
• Service issues on Spicer 60 axle-equipped Dodge trucks
• Seal replacement needs during driveline maintenance

Installation Notes and Tips

Confirm the axle configuration before installation; this seal is listed for rear inner use with the Spicer 60 axle. Inspect the shaft surface and housing bore for wear, scoring, or corrosion before installing the new seal. Clean the sealing surfaces thoroughly and verify the dimensions match the application requirements for WS475458.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and high-quality materials to support reliable sealing performance in driveline service. Part number WS475458 is specified for 1975-1976 Dodge B300, D300, and W300 rear inner applications with the Spicer 60 axle.