FAG SS2942 Transfer Case Output Shaft Seal - Front or Rear Lower

Transfer Case Output Shaft Seal for Ford Trucks

FAG SS2942 is a transfer case output shaft seal built with a nitrile sealing material, metal case, spring, and auxiliary lip design. It is specified for select 1977-1979 Ford truck and Bronco applications with New Process 203 transfer cases, including front and rear lower positions where listed.

• Transfer case output shaft seal for select Ford 4x4 applications
• Metal, spring, and auxiliary lip seal type for controlled sealing performance
• Nitrile sealing material for resistance to common drivetrain fluids
• Bore diameter: 3.061 in. / 77.749 mm
• Seal outside diameter: 3.066 in. / 77.876 mm
• Seal width: 1.875 in. / 47.625 mm
• Cross-references National 473457 and SKF 18872 for the same application

Detailed Application Coverage

FAG SS2942 is a direct-fit transfer case output shaft seal for vehicles using the New Process 203 transfer case listed in the fitment data. It fits 1978-1979 Ford Bronco, front and rear lower; 1977-1978 Ford F-100, front; 1977-1978 Ford F-150, front; and 1977-1978 Ford F-250, front. This part number is also identified by the FAG global number 413 2942 100.

Built to manufacturer specifications, this seal helps maintain the transfer case’s internal sealing surface at the output shaft. The dimensions and seal construction are important for keeping lubricant in place and limiting contamination at the shaft opening. For restoration work or drivetrain service on a Ford Bronco or Ford F-Series truck, FAG SS2942 provides the correct size and profile for the listed applications.

What This Seal Helps Address

• Transfer case fluid seepage at the output shaft
• Contamination from dirt, dust, and moisture entering the seal area
• Grease or lubricant loss around the shaft opening
• Wear-related sealing issues on older New Process 203-equipped drivetrains
• Service replacement needs for select Ford Bronco and Ford F-Series models

Installation Notes and Tips

Verify the transfer case model, shaft diameter, and seal dimensions before installation. Clean the bore and shaft sealing surface thoroughly, and inspect for grooves, corrosion, or damage that could affect sealing. Proper alignment during installation is important to avoid distorting the metal-cased seal and to help the auxiliary lip seat correctly.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain its quality standards. The seal construction and material selection are intended to support consistent sealing performance in the listed Ford Bronco and Ford F-Series applications.