FAG SR3494 Differential Pinion Repair Sleeve - Front

FAG SR3494 Differential Pinion Repair Sleeve

The FAG SR3494 differential pinion repair sleeve restores sealing performance on damaged shaft surfaces without shaft removal or machining. Made from heat-treated stainless steel, it adds a precise sealing surface that helps extend shaft life and reduce premature wear in driveline service.

Key Features

• Precision repair sleeve for differential pinion shaft sealing surfaces
• Heat-treated stainless steel construction for durability
• Helps protect worn or damaged shaft areas from further wear
• No shaft removal or machining required for installation
• Measures 1.719 in shaft diameter, 2.031 in flange diameter, 0.563 in width on shaft, and 0.813 in installation depth
• Also listed as 43.663 mm shaft diameter, 51.587 mm flange diameter, 14.3 mm width on shaft, and 20.65 mm installation depth

Detailed Description

Use the FAG SR3494 when the differential pinion sealing surface has wear, scoring, or minor damage that affects seal contact. This repair sleeve provides a new sealing surface on the shaft, helping maintain proper oil control in the front driveline. It is a practical repair solution for Dodge Durango front, Dodge Dakota front, Chrysler Aspen front, and Mitsubishi Raider front applications where the original shaft surface no longer supports reliable sealing. This part cross-references OSC 99171 for the same application.

What It Helps Solve

• Oil seepage at the differential pinion seal area
• Seal wear caused by grooves or scoring on the shaft
• Premature shaft surface deterioration
• Repair situations where machining the shaft is not practical
• Front differential service issues on Dodge Durango, Dodge Dakota, Chrysler Aspen, and Mitsubishi Raider

Installation Notes and Tips

• Inspect the pinion shaft carefully before installation to confirm the sealing surface is the source of the leak.
• Clean the shaft thoroughly so the sleeve seats evenly and the seal rides on the new surface.
• Verify sleeve dimensions against the shaft diameter and installation depth before assembly.
• Follow the vehicle service procedure for front differential repair on the specific Dodge, Ram, Chrysler, or Mitsubishi application.

Quality Assurance

FAG manufactures this repair sleeve as a precision driveline service component using heat-treated stainless steel for consistent fit and sealing support. Part number SR3494 is engineered for front differential pinion repair applications and is listed with OE-style cross-reference coverage for the same use case.