FAG SS2776 Differential Pinion Seal - Rear

Overview of FAG Differential Pinion Seal SS2776

The FAG Differential Pinion Seal SS2776 is engineered to provide reliable sealing performance for driveline systems. Designed specifically for select Buick, Chevrolet, GMC, Oldsmobile, and Pontiac models, this seal ensures optimal protection against leaks and contamination.

• Seal Type: Metal construction with spring and auxiliary lip for enhanced sealing
• Sealing Material: Durable nitrile compound for resistance to oil and wear
• Bore Diameter: 2.812 inches (71.425 mm)
• Seal Outside Diameter: 2.816 inches (71.526 mm)
• Seal Width: 1.739 inches (15.088 mm)

Technical Details and Specifications

The SS2776 differential pinion seal features a metal casing combined with a spring and auxiliary lip design, which helps maintain consistent pressure against the shaft to prevent fluid leakage. The nitrile sealing material offers excellent resistance to automotive oils and greases, making it suitable for heavy-duty applications. With precise bore and outside diameters, this seal fits securely within the differential housing, ensuring a tight and durable seal.

Compatible Vehicles and Applications

This FAG differential pinion seal is compatible with a range of classic and modern vehicles, including Buick models like the Skylark and LeSabre, Chevrolet trucks such as the C10, C20, and K10 Suburban, as well as performance vehicles like the Camaro and Corvette. It also fits GMC trucks including the K20 and P1500, Oldsmobile Cutlass and 442, and Pontiac Firebird and GTO. The part number SS2776 is specifically designed to meet the sealing requirements of these driveline systems.

Common Issues Addressed by the SS2776 Seal

• Prevents differential oil leaks that can cause driveline damage
• Reduces contamination ingress to protect internal components
• Maintains proper lubrication within the differential assembly
• Minimizes wear on pinion bearings by retaining lubricant
• Helps avoid costly repairs due to seal failure or fluid loss

Installation Notes and Tips

When installing the FAG SS2776 differential pinion seal, ensure the differential housing and shaft surfaces are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip. Verify the seal orientation matches the original part to maintain proper sealing function. It is recommended to inspect related components such as bearings and gears during installation for overall driveline health.

Quality Assurance and Warranty

FAG manufactures the SS2776 differential pinion seal to meet stringent quality standards, ensuring durability and reliable performance in demanding automotive environments. The seal is produced with high-grade nitrile material and precision metal components. While specific warranty details may vary, FAG products typically come with manufacturer-backed quality guarantees to support professional repairs and maintenance.