InMotion WS40769S Drive Axle Shaft Seal - Front, Rear or Rear Inner

Drive Axle Shaft Seal for Front Differential Service

The InMotion WS40769S drive axle shaft seal is built for front differential applications that need a precise sealing surface and dependable contaminant protection. Made with nitrile sealing material, it helps maintain a tight barrier against moisture, dirt, and debris at the axle shaft opening.

Use this seal for front axle service on select Chevrolet, Dodge, and Ford trucks and SUVs, including Ford F-100, F-250, F-350, Bronco, Chevrolet K10, K20, and Dodge Ramcharger applications listed below.

• Nitrile material for durable sealing performance
• Inside diameter: 1.312 in.
• Outside diameter: 2.286 in.
• Housing bore: 2.282 in.
• Width and thickness: 0.25 in.
• Designed for front axle shaft sealing in differential service
• Part number: WS40769S

Detailed Product Overview

InMotion WS40769S is a drive axle shaft seal engineered to help protect sensitive differential components by sealing the axle shaft opening against contamination and fluid loss. Its nitrile sealing material is selected for consistent contact and resistance in driveline sealing applications, while the listed dimensions support accurate fitment during axle and differential maintenance. This seal is used in front-position applications across classic Ford truck platforms, along with select Chevrolet K10 and K20 models and a Dodge Ramcharger front axle setup. For buyers searching for a front differential pinion seal, axle shaft seal, or driveline gasket and sealing system part, WS40769S provides a direct service replacement option. This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Compatible Vehicle Applications

• Fits 1975-1977 Chevrolet K20, front, with SpiceR 44-5CFHD Axle
• Fits 1967-1977 Chevrolet K20 Suburban, front, with Spicer 44-5CFHD Axle
• Fits 1969-1970 Chevrolet K10 Suburban, front, with SpiceR 44-5CFHD Axle
• Fits 1974 Dodge Ramcharger, front, with Spicer 44-3CF Axle
• Fits 1971-1972 Ford Bronco, front, with Spicer 44-1F Axle
• Fits 1966-1972 Ford F-100, front, with Spicer 44-7F Axle
• Fits 1959-1965 Ford F-100, front, with Spicer 44-F Axle(s)
• Fits 1972 Ford F-250, front, with SpiceR 44-6CF Axle
• Fits 1970 Ford F-250, front, with SpiceR 44-6CF Axle
• Fits 1971 Ford F-250, front, with Spicer 44-6FHD Axle
• Fits 1968 Ford F-250, front, with Spicer 44-6FHD Axle
• Fits 1966 Ford F-250, front, with Spicer 44-6FHD Axle
• Fits 1969 Ford F-250, front, with Spicer 44-6CFHD Axle
• Fits 1967 Ford F-250, front, with Spicer 44-6F Axle
• Fits 1965 Ford F-250, front, with Spicer 44-F Axle(s)
• Fits 1964 Ford F-250, front, with Spicer 44-F Axle
• Fits 1959-1963 Ford F-250, front, with Spicer 44-F Axle(s)
• Fits 1971-1972 Ford F-350, front, with Spicer 44-6CFHD Axle
• Fits 1969-1970 Ford F-350, front, with SpiceR 44-6CF Axle
• Fits 1968 Ford F-350, front, with Spicer 44-6F Axle
• Fits 1967 Ford F-350, front, with Spicer 44-6CFHD Axle
• Fits 1966 Ford F-350, front, with Spicer 44-6FHD Axle
• Fits 1959-1965 Ford F-350, front, with Spicer 44-F Axle(s)

Installation Notes and Tips

Confirm axle type and housing dimensions before installation, since this seal is application-specific to the listed Spicer and SpiceR front axle configurations. Clean the seal bore and shaft surface thoroughly, and inspect the axle shaft, bearing area, and housing for wear or scoring that could affect sealing performance. Match the seal dimensions to the housing bore and shaft diameter shown above for proper seating.

Quality Assurance

InMotion manufactures this seal with precision-focused construction and nitrile sealing material to support reliable differential service. No warranty information was provided in the product data.