InMotion WS9316 Differential Pinion Seal - Front Outer or Rear Outer

Differential Pinion Seal for Spicer Axles

The InMotion WS9316 differential pinion seal is built to retain gear oil and block out dirt, water, and road debris at the pinion area. With a polyacrylate sealing material and precise dimensions, it supports a tight seal for front outer and rear outer differential applications across a wide range of trucks, vans, and performance vehicles.

• Part number: WS9316
• Polyacrylate construction for sealing durability
• Inside diameter: 1.875 in.
• Outside diameter: 3.165 in.
• Thickness: 0.695 in.
• Housing bore: 3.16 in.
• Fits front outer and rear outer positions

Fitment Coverage

• Fits 1994-2002 Dodge Ram 2500, front outer, with Spicer 60-F axle.
• Fits 1994-2002 Dodge Ram 3500, front outer, with Spicer 60-F axle.
• Fits 1992-2000 Dodge Viper, rear outer, carrier unit independent.
• Fits 1984-1996 Chevrolet Corvette, rear outer, carrier unit independent.
• Fits 1981-1993 Dodge W250, front outer, with Spicer 60-F axle.
• Fits 1981-1993 Dodge W350, front outer, with Spicer 60-F axle.
• Fits 1975-1991 Chevrolet P30, rear outer, with Spicer 70HD axle.
• Fits 1974-1988 Jeep J20, rear outer, with Spicer 60-3 axle.
• Fits 1971-1972 Ford F-100, rear outer, with Spicer 60.2 axle.
• Fits 1970 Ford F-100, rear outer, 0.695 in. width.
• Fits 1970 Ford F-250, rear outer, 0.695 in. width.
• Fits 1970 Ford F-350, rear outer, 0.695 in. width.

Detailed Description

WS9316 is a differential pinion seal engineered for precise fitment at the axle pinion area, where sealing integrity is critical to keeping lubricant inside the differential and contaminants outside. The polyacrylate sealing element is selected for dependable contact and resistance in demanding driveline environments. This seal is used in a broad range of applications, including Dodge Ram 2500 and Ram 3500 front outer setups, Chevrolet Corvette rear outer independent carrier units, and Chevrolet P30 rear outer axle assemblies.

This part cross-references no listed alternate part numbers in the provided data. For shoppers searching by vehicle, WS9316 is a direct-fit option for many Dodge, Chevrolet, Ford, GMC, and Jeep applications with the specified Spicer axle configurations.

What It Helps Address

• Gear oil seepage at the differential pinion area
• Contamination from dirt, moisture, and road splash
• Seal wear that can lead to driveline fluid loss
• Maintenance needs on high-mileage axle assemblies
• Service replacement on Spicer-equipped front outer and rear outer applications

Installation Notes and Tips

Confirm axle type, position, and housing bore before installation. This seal is listed for front outer and rear outer applications depending on vehicle and axle configuration, so match the vehicle notes carefully. Inspect the pinion surface for wear or scoring before installing WS9316, and verify the seal seats evenly in the housing to maintain proper contact.

Quality Assurance

InMotion manufactures WS9316 with precision-focused dimensions and high-quality materials for differential sealing applications. The design emphasizes a secure barrier against contaminants and a reliable seal to support differential service life.