FAG SS2788 Differential Pinion Seal - Front or Rear

Differential Pinion Seal for OE-Style Axle Service

The FAG SS2788 differential pinion seal is built for axle applications that need reliable sealing at the pinion area. It uses a Viton sealing material with a metal case, spring, and auxiliary lip to help maintain a tight seal in demanding driveline conditions.

Compatible with a wide range of Jeep, Dodge, Chrysler, Mitsubishi, Isuzu, and Ram applications, this seal is a direct-fit service part for rear and front axle positions listed below. The FAG SS2788 is a practical choice when servicing leaks around the pinion seal area on vehicles such as the Jeep Liberty and Dodge Dakota.

Key Features

• Part number: SS2788
• Differential pinion seal for driveline and axle service
• Seal type: metal, spring, and auxiliary lip
• Sealing material: Viton
• Bore diameter: 2.614 in. / 66.396 mm
• Seal outside diameter: 2.621 in. / 66.573 mm
• Seal width: 1.732 in. / 43.993 mm
• Engineered to help protect axle components from dirt, dust, and moisture
• Helps retain lubricant at the bearing and seal interface

Detailed Description

FAG designs seals to meet vehicle-specific requirements, using materials selected for durability and consistent sealing performance. The SS2788 differential pinion seal is specified for applications that use an 8.25-inch ring gear in many rear axle setups, along with select front axle applications on Isuzu models. This part cross-references National 710480 for the same application.

Use this seal when servicing rear axle leaks on 2000-2010 Dodge Dakota, 2000-2010 Dodge Ram 1500, 2005-2010 Jeep Grand Cherokee, or 2009-2012 Jeep Liberty, as well as other listed applications. The FAG SS2788 is also listed for select Dodge Durango, Dodge Nitro, Chrysler Aspen, Mitsubishi Raider, and Ram truck and van applications.

What This Part Helps Address

• Gear oil seepage at the differential pinion area
• Contamination from road dirt, dust, and moisture
• Loss of lubricant around the axle seal surface
• Wear-related sealing issues during driveline service
• Replacement needs during rear differential repair on Jeep Liberty and Dodge Dakota models

Installation Notes and Tips

Confirm axle type, position, and seal dimensions before installation. This part is listed for rear and front positions depending on vehicle application, including rear service on many Jeep Liberty, Dodge Dakota, and Dodge Ram applications. Inspect the pinion yoke, shaft surface, and surrounding housing for wear or damage before installing the new seal.

For best results, install the seal squarely and verify that the sealing surface is clean and free of scoring. Always match the application to the exact year, make, model, and axle configuration shown in the fitment data.

Quality Assurance

FAG seals are engineered with high-quality materials and built to meet vehicle manufacturer specifications. The SS2788 is designed to support consistent sealing performance in demanding axle environments.