InMotion WS710685 Drive Axle Shaft Seal - Front Outer

Front Outer Differential Pinion Seal for Ford Super Duty

The InMotion WS710685 is a front outer drive axle shaft seal built for differential sealing performance in demanding truck applications. Made from nitrile and sized to match the specified shaft and housing dimensions, it helps maintain a secure barrier against dirt, moisture, and fluid loss.

Compatible with Ford F-250 Super Duty and Ford F-350 Super Duty front outer applications with a Spicer 60-SF axle, this seal is also listed for the 2005 Ford Excursion in the same configuration. The WS710685 is engineered for precise fitment where differential pinion sealing is critical.

Key Features

• Nitrile construction for sealing durability
• Inside diameter: 3.528 in.
• Outside diameter: 5.469 in.
• Shaft diameter: 3.545 in.
• Housing bore: 5.465 in.
• Thickness and width: 0.654 in.
• Front outer position for Spicer 60-SF axle applications
• Part number: WS710685

Detailed Description

InMotion WS710685 is a differential pinion seal designed to help protect internal driveline components by sealing the axle assembly against contaminants and fluid leakage. Its nitrile material is selected for sealing performance in automotive driveline environments, while the listed dimensions support accurate installation in the intended housing and shaft interface. This part is a direct-fit style solution for Ford F-250 Super Duty, Ford F-350 Super Duty, and 2005 Ford Excursion front outer applications with a Spicer 60-SF axle. If you are replacing a worn or leaking seal, WS710685 provides the dimensional consistency needed for service work on the differential pinion area.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination from road debris and moisture
• Seal wear from age, heat, and driveline use
• Loss of sealing integrity in front outer axle service
• Maintenance needs on Ford Super Duty front axle assemblies

Installation Notes and Tips

Verify shaft diameter and housing bore before installation to confirm the seal matches the axle assembly. Clean the sealing surface and inspect the pinion area for wear, scoring, or contamination before pressing in the new seal. For best results, replace the seal during differential service and confirm proper seating after installation. Fits 2005-2018 Ford F-250 Super Duty, Front Outer, with Spicer 60-SF Axle. Fits 2005-2018 Ford F-350 Super Duty, Front Outer, with Spicer 60-SF Axle. Fits 2005 Ford Excursion, Front Outer, with Spicer 60-SF Axle.

Quality Assurance

Built by InMotion using nitrile sealing material and application-specific dimensions for the listed Ford front outer axle fitments. Part number WS710685 is specified for differential pinion sealing service in the confirmed applications above.