FAG SS3259 Differential Pinion Seal - Rear

Reliable Differential Pinion Seal for Chevrolet and GMC Vehicles

The FAG SS3259 differential pinion seal is engineered to provide dependable sealing performance for select Chevrolet and GMC models. Designed with durable materials and precise dimensions, this seal helps maintain optimal driveline function and prevents fluid leaks.

• Seal Type: Metal construction with spring, auxiliary lip, and inner shell for enhanced sealing
• Sealing Material: Polyacrylate for effective resistance to oil and contaminants
• Bore Diameter: 3.481 inches (88.417 mm) ensuring a precise fit
• Seal Outside Diameter: 3.486 inches (88.544 mm) for secure installation
• Seal Width: 11.125 mm (2.598 inches) designed for durability and proper sealing

Technical Details and Construction

The FAG SS3259 differential pinion seal features a metal outer shell combined with a spring-loaded auxiliary lip that maintains consistent pressure against the pinion shaft. The polyacrylate sealing material offers resistance to heat and oil degradation, making it suitable for heavy-duty applications. With exact bore and outside diameters, this seal ensures a tight fit within the differential housing, reducing the risk of leaks and contamination.

Compatible Chevrolet and GMC Models

This differential pinion seal is compatible with various Chevrolet and GMC vehicles, including the Chevrolet C20 Suburban, C30, K20 Suburban, K30, and the GMC P30 and P3500 models. The SS3259 part number corresponds specifically to these applications, providing a reliable replacement option for maintaining driveline integrity.

Common Applications and Problem Solving

• Prevents differential oil leaks that can lead to driveline damage
• Maintains proper lubrication within the differential assembly
• Reduces contamination from dirt and debris entering the pinion area
• Helps avoid premature wear of pinion bearings and gears
• Supports consistent vehicle performance under heavy load conditions

Installation Notes and Tips

When installing the FAG SS3259 differential pinion seal, ensure the differential housing and pinion shaft are clean and free of debris. Use appropriate tools to press the seal evenly into place without damaging the sealing lip or metal shell. Verify the seal dimensions match the original equipment specifications for a proper fit. Avoid using excessive force during installation to maintain seal integrity.

Quality Assurance and Warranty

FAG manufactures the SS3259 differential pinion seal to meet stringent quality standards, ensuring reliable performance in demanding automotive environments. While specific warranty details are not provided, FAG products are known for their engineering precision and durability, supporting long-term driveline protection for Chevrolet and GMC vehicles.