FAG SS2937 Differential Pinion Seal - Rear

Differential Pinion Seal for Ram and Dodge Axles

The FAG SS2937 differential pinion seal is built for rear axle service on a wide range of Ram, Dodge, Chrysler, and Mitsubishi applications. It uses a Viton sealing material with a metal case, spring, and auxiliary lip to help maintain a tight seal at the pinion area where gear oil retention is critical.

Compatible With 2000-2019 Ram 1500 rear applications, 2000-2010 Dodge Dakota rear applications, and other listed rear axle vehicles with the correct 9.25" ring gear setup. The FAG SS2937 is sized with a 2.811 in bore diameter, 2.816 in outside diameter, and 1.893 in width for application-specific axle service.

Key Features

• Brand: FAG
• Part number: SS2937
• Part type: differential pinion seal
• Seal type: metal, spring, auxiliary lip
• Sealing material: Viton
• Bore diameter: 2.811 in (71.399 mm)
• Outside diameter: 2.816 in (71.526 mm)
• Width: 1.893 in (48.082 mm)
• Rear axle fitment for select Ram, Dodge, Chrysler, and Mitsubishi vehicles

Detailed Description

FAG SS2937 is a rear differential pinion seal designed for vehicles that require precise axle sealing at the pinion input. The Viton sealing material is selected for demanding driveline environments, while the metal shell, spring, and auxiliary lip help maintain sealing contact and resist contamination at the axle end. This part is listed for applications including 2019 Ram 1500 rear, 2019 Ram 1500 Classic rear, 2011-2018 Ram 1500 rear, 2000-2010 Dodge Ram 1500 rear, 2001-2008 Dodge Ram 2500 rear, and 2001-2008 Dodge Ram 3500 rear. It also cross-references National 710481 for the same application.

Additional listed coverage includes 2000-2009 Dodge Durango rear, 2007-2009 Dodge Nitro rear, 2007-2009 Chrysler Aspen rear, 2006-2009 Mitsubishi Raider rear, and 2000-2003 Dodge Ram Van applications. The FAG SS2937 is a direct-fit style seal for the specified rear axle configurations and should be matched to the axle and ring gear specification before installation.

Common Problems This Seal Can Address

• Rear differential gear oil seepage at the pinion area
• Contamination from dirt, dust, or moisture entering the axle housing
• Loss of lubricant around the pinion shaft seal surface
• Seal wear on high-mileage Ram, Dodge, or Chrysler rear axles
• Service replacement for vehicles with a 9.25" ring gear specification

Installation Notes and Tips

Verify axle configuration, ring gear size, and seal dimensions before installation. Inspect the pinion yoke and sealing surface for grooves, corrosion, or wear that could affect sealing performance. Clean the bore and surrounding housing thoroughly, and confirm the seal is seated squarely during installation. For best results, replace the seal only after confirming the source of the leak is the pinion area and not another axle component.

Quality Assurance

FAG designs seals to meet vehicle manufacturer specifications and works with suppliers to maintain its quality standards. The SS2937 is engineered for demanding wheel-end and driveline sealing conditions, with materials selected to help protect components from contamination and preserve lubricant retention over the life of the bearing and axle assembly.