InMotion WS8312 Wheel Seal - Front Inner

InMotion WS8312 Differential Pinion Seal

The InMotion WS8312 is a nitrile differential pinion seal built to keep contaminants out and fluid in at the pinion area. It is sized for a precise fit and supports reliable sealing in front inner applications on select Ford Bronco II and Ford Ranger models.

Key Features

• Nitrile construction for sealing performance in driveline service
• Inside diameter: 2.136 in; shaft diameter: 2.136 in
• Outside diameter: 2.91 in; housing bore: 2.904 in
• Width: 0.326 in for a compact seal profile
• Direct-fit application for select front inner Ford axle positions
• Part number WS8312 for catalog and service matching

Detailed Description

Built for driveline sealing service, the InMotion WS8312 helps maintain a secure barrier at the differential pinion area where moisture, road debris, and lubricant loss can affect internal components. Its nitrile material is selected for sealing durability, while the listed dimensions support accurate fitment in the housing and on the shaft. This part number WS8312 is used in front inner positions on select Ford Bronco II and Ford Ranger applications, including 1990 Ford Bronco II with Spicer 28-IFS axle and 1984-1989 Ford Bronco II and 1983-1989 Ford Ranger front inner locations.

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

Compatible Vehicle Fitment

• Fits 1990 Ford Bronco II, Front Inner, with Spicer 28-IFS Axle
• Fits 1984-1989 Ford Bronco II, Front Inner
• Fits 1983-1989 Ford Ranger, Front Inner

Common Issues This Seal Addresses

• Gear oil seepage at the differential pinion area
• Contamination from dirt, water, and road debris entering the seal area
• Wear-related sealing loss at the pinion shaft interface
• Service replacement for front inner axle sealing maintenance

Installation Notes and Tips

Verify the housing bore, shaft diameter, and seal width before installation to confirm the WS8312 matches the application. Inspect the pinion surface for scoring or corrosion, and clean the bore thoroughly so the seal seats evenly. Proper installation technique helps prevent distortion and supports a uniform sealing surface.

Quality Assurance

InMotion manufactures this seal with precision-focused dimensions and nitrile material selection for driveline sealing service. The WS8312 is specified for select Ford front inner applications, including Bronco II and Ranger fitments listed above.