FAG SS2634 Differential Pinion Seal - Front, Front Inner or Rear

FAG SS2634 Differential Pinion Seal

FAG SS2634 is a differential pinion seal built for axle applications that need reliable sealing at the pinion area. It uses Viton sealing material and a metal spring design with an auxiliary lip and inner shell to help maintain a tight seal in demanding driveline environments.

Compatible With select Jeep, Dodge, Honda, Isuzu, Chevrolet, and Ford applications, including Jeep Wrangler rear axle and Dodge Ram 1500 front inner fitments. The FAG SS2634 part number is also referenced in OE-style replacement searches for Spicer 44 axle applications.

Key Features

• Part number: SS2634
• Seal type: metal, spring, auxiliary lip, inner shell
• Sealing material: Viton
• Bore diameter: 3.16 in. / 80.264 mm
• Seal outside diameter: 3.165 in. / 80.391 mm
• Seal width: 1.552 in. / 39.421 mm
• Built for differential pinion sealing in axle service

Detailed Description

FAG SS2634 is engineered for differential pinion sealing where axle components are exposed to heat, road contamination, and lubricant movement. The Viton sealing material is selected for durability in demanding driveline conditions, while the metal spring and auxiliary lip help maintain sealing contact. This seal is used across multiple rear, front, and front inner applications, including Jeep TJ and Wrangler rear axle listings, Dodge Dakota and Ram 1500 front axle listings, and other confirmed vehicle-specific fitments.

This part cross-references Dorman - HELP 15791 and National 5778V for the same application.

What It Helps Address

• Gear oil leakage at the differential pinion area
• Contamination from dirt, dust, and moisture entering the axle assembly
• Seal wear from age, heat, and driveline movement
• Lubricant loss that can affect axle component protection
• Service issues on Spicer 44 axle applications

Installation Notes and Tips

• Verify axle type, position, and dimensions before installation.
• Inspect the pinion yoke and sealing surface for grooves or damage.
• Clean the bore and surrounding housing area before pressing in the new seal.
• Use the confirmed fitment notes for your vehicle, including rear, front, or front inner position.
• For fitment searches, this seal is listed for 2003 Jeep TJ rear, 2003 Jeep Wrangler rear, and 2000-2002 Dodge Ram 1500 front inner applications.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain FAG quality standards. SS2634 is built to the dimensional and material requirements expected for axle sealing service.