FAG SS2946 Wheel Seal - Rear

Wheel Seal for Ford Rear Axles

The FAG SS2946 wheel seal is built for rear wheel-end service on a wide range of Ford, Lincoln, and Mercury applications. It uses a nitrile sealing material with a metal spring and auxiliary lip design to help keep contamination out and grease in at the bearing.

With precise dimensions and OE-focused engineering, this wheel seal is a direct-fit service part for many rear axle applications, including Ford F-100, F-150, Bronco, and E-Series vans.

Key Features

• Part number: SS2946
• Wheel seal for rear axle applications
• Nitrile sealing material for durable sealing performance
• Metal, spring, and auxiliary lip seal design
• Bore diameter: 3.15 in. / 80.01 mm
• Seal outside diameter: 3.146 in. / 79.908 mm
• Seal width: 1.875 in. / 47.625 mm
• Engineered to help protect wheel-end components from dirt, dust, and moisture

Detailed Description

FAG SS2946 is a rear wheel seal designed for vehicle-specific axle and bearing applications where accurate sealing dimensions matter. The seal helps retain grease at the wheel end while reducing exposure to road contamination, which is important for bearing life and consistent axle performance. This part number is commonly used on Ford rear axle service jobs and also appears in Lincoln and Mercury rear applications.

Compatible With 1987-1988 Ford E-150 Econoline, rear; 1980-1988 Ford E-150 Econoline Club Wagon, rear; 1987 Ford Bronco, rear; 1978-1986 Ford Bronco, rear with 9.00" ring gear; 1980-1986 Ford E-150 Econoline, rear with 9.00" ring gear and 3750 lb axle weight; and other listed rear applications. SS2946 is also a useful reference when servicing older Ford F-100 and F-150 rear axle setups.

This part cross-references Anchor 3195 and Gates 18881 for the same application.

What It Helps Address

• Grease loss at the wheel end
• Dirt, dust, and moisture intrusion around the bearing area
• Seal wear from age, heat, and road exposure
• Rear axle service needs on Ford, Lincoln, and Mercury vehicles
• Noise or roughness related to contaminated wheel-end components

Installation Notes and Tips

• Verify axle type, ring gear size, and axle weight notes before ordering.
• Confirm seal dimensions against the original part and hub bore.
• Inspect the bearing, spindle, and hub surfaces for wear or scoring before installation.
• Clean the sealing surface thoroughly so the new seal seats evenly.
• Use the vehicle-specific rear application notes for Ford Bronco, F-150, E-Series, and related models.

Quality Assurance

FAG designs wheel seals to meet vehicle manufacturer specifications and works with suppliers to maintain FAG quality standards. SS2946 is engineered for demanding wheel-end service where sealing accuracy and material selection are critical.