SKF 15315 Differential Pinion Seal - Rear

SKF 15315 Differential Pinion Seal

SKF 15315 is a differential pinion seal built for rear axle sealing applications where accurate shaft fit and durable lip material matter. With Vamac sealing surface construction and dimensions matched to the application, this seal helps maintain lubricant retention in the differential housing.

Compatible with a wide range of Chevrolet, GMC, Pontiac, Buick, Oldsmobile, Cadillac, and Isuzu rear axle applications, including Chevrolet S10, Blazer, Camaro, and GMC Sonoma fitments. This SKF 15315 seal is engineered for vehicles that use 7.50", 7.625", or related ring gear configurations listed in the fitment data.

Key Features

• Part number: 15315
• Differential pinion seal for rear axle service
• Vamac sealing surface type for sealing performance
• Width: 0.607
• Outside diameter: 2.660
• Shaft diameter: 1.524
• Designed for confirmed rear-position applications
• Cross-reference part numbers include 26026792 and 8260267920

Detailed Description

SKF has a long history in seal design, and this differential pinion seal reflects that experience with application-specific construction and premium materials. The seal is made to the correct dimensions for the shaft and housing interface, helping maintain proper lubrication at the pinion area while keeping road contaminants out of the axle assembly. For rear axle service on Chevrolet S10, GMC Sonoma, and related GM platforms, SKF 15315 provides a direct-fit sealing solution based on the listed vehicle and axle configurations.

What It Is Used For

• Rear differential pinion oil leakage at the seal area
• Gear oil seepage around the pinion shaft
• Contamination entering the axle housing through a worn seal
• Service replacement during differential rebuild or axle maintenance
• Restoring sealing integrity on GM rear axle applications

Installation Notes and Tips

Verify the axle ratio, ring gear size, and shaft dimensions before installation. Clean the sealing bore and pinion surface thoroughly, and inspect the shaft for wear or grooves that could affect seal life. Proper alignment during installation is important to avoid damaging the sealing lip. Confirm rear-position fitment against the vehicle listing before ordering.

Quality Assurance

SKF manufactures seals to specific designs and quality standards using materials selected for the application environment. The brand’s seal engineering heritage dates back to the first integrated shaft seal in 1928, and SKF products are built for long service life and safety in automotive use.