National 710754 Drive Axle Shaft Seal - Front

Overview of National Drive Axle Shaft Seal 710754

The National Drive Axle Shaft Seal 710754 is engineered for reliable sealing performance in Ford and Lincoln vehicles. Designed specifically for models like the Ford F-150, F-250, Expedition, and Lincoln Navigator, this oil seal helps maintain driveline integrity by preventing oil leaks and contamination.

• Constructed from durable nitrile material for resistance to wear and oil
• Bi-directional lip design ensures effective sealing under varying rotational directions
• Inside diameter of 1.811 inches (46 mm) fits precisely on the drive axle shaft
• Outside diameter measures 2.606 inches (66.2 mm) with a flanged outside diameter of 2.874 inches (73 mm)
• Thickness of 0.394 inches (10 mm) with an overall width including side lip of 0.669 inches (17 mm)
• Compatible with housing bore diameter of approximately 2.598 inches (66 mm)

Detailed Product Description

The National 710754 drive axle shaft seal is designed to provide a secure and durable seal between the axle shaft and the housing bore. Made from nitrile, a synthetic rubber known for its oil resistance and flexibility, this seal withstands harsh operating conditions commonly found in Ford and Lincoln trucks and SUVs. The bi-directional lip design enhances sealing efficiency by preventing oil leakage regardless of shaft rotation direction, which is critical for vehicles like the Ford Expedition and Lincoln Navigator that experience varied driving conditions. Precise dimensional specifications ensure a proper fit on axle shafts with a 1.811-inch diameter and housings with a 2.598-inch bore, minimizing the risk of premature wear or failure.

Applications and Problem Solving

• Prevents oil leaks from the drive axle shaft area
• Protects driveline components from dirt and contaminants
• Reduces risk of axle shaft seal failure due to wear or improper fit
• Maintains proper lubrication within the axle assembly
• Helps avoid costly driveline repairs caused by seal degradation

Installation Notes and Tips

• Ensure the housing bore and axle shaft are clean and free of debris before installation
• Use appropriate tools to press the seal evenly into the housing bore without distortion
• Verify the seal’s orientation matches the bi-directional lip design for optimal performance
• Check for any damage to the seal lips during installation to prevent leaks
• Consult vehicle service manual for torque specifications and installation procedures

Quality Assurance and Warranty

National manufactures the 710754 drive axle shaft seal to meet industry standards for durability and performance. The nitrile material and precise engineering contribute to a reliable seal that supports the longevity of Ford and Lincoln driveline systems. While specific warranty details may vary, National typically offers coverage against manufacturing defects to ensure customer confidence in the product’s quality.