Dorman 600-407 Drive Axle Shaft Seal - Front Inner

Dorman 600-407 Front Inner Axle Shaft Seal

Dorman 600-407 is a front inner drive axle shaft seal for Ford Super Duty applications. It seals the rear axle to the wheel hub area and addresses axle fluid leakage around the wheel hub when the original o-ring has failed.

• Direct-fit axle shaft seal for specific Ford Super Duty front inner applications
• Helps seal the rear axle to the wheel hub
• Constructed from steel and NBR for sealing performance
• Round gasket-style seal with black/silver finish
• Designed for 36 mm shaft diameter applications
• Sealant not included

Detailed Product Information

This Dorman axle shaft seal is built for specific front inner service on Ford F-250 Super Duty and Ford F-350 Super Duty models. The seal is used at the wheel hub interface to help contain axle fluid and maintain a proper seal where leakage commonly appears. Part number 600-407 is a practical OE-style replacement when the original axle shaft o-ring no longer seals correctly.

Material details include steel and NBR, with a round profile and gasket-style sealing design. The listed dimensions include a 36 mm inside diameter and shaft diameter, 66.88 outside diameter, 24.46 thickness, and 95.5 width. This part cross-references National 710701 for the same application.

What It Helps Address

• Axle fluid leaking around the wheel hub
• Failed rear axle-to-hub sealing at the front inner position
• Seal wear from age, heat, and fluid exposure
• Loss of sealing integrity on Ford Super Duty front axle service
• Replacement needs for a specific-fit axle shaft o-ring seal

Installation Notes and Tips

Verify the front inner position and confirm shaft diameter before installation. Clean the hub and sealing surfaces thoroughly, and inspect the mating components for wear or damage that could affect sealing. Use the correct service procedure for the vehicle and confirm the seal seats evenly before returning the axle to service.

Quality Assurance

Dorman manufactures replacement parts for specific vehicle applications, and this seal is engineered to match the listed fitment for Ford F-250 Super Duty and Ford F-350 Super Duty front inner service. Confirm part number 600-407 against the vehicle application before ordering.