National 710429 Drive Axle Shaft Seal - Front Left or Rear

Overview of National 710429 Drive Axle Shaft Seal

The National 710429 drive axle shaft seal is engineered to provide reliable sealing performance for various Ford, Lincoln, Mazda, and Mercury vehicles. Designed with a bi-directional lip and constructed from durable fluoro-elastomer material, this oil seal helps maintain driveline integrity and prevent fluid leaks.

• Inside diameter options: 1.380 inch (35.050 mm)
• Outside diameter: 2.291 inch (58.240 mm)
• Flanged outside diameter: 2.638 inch (67.000 mm)
• Thickness with side lip: 0.750 inch (19.050 mm)
• Bi-directional helix lip design for effective sealing
• Material: Fluoro-elastomer for enhanced chemical and temperature resistance
• Compatible housing bore: 2.288 inch (58.190 mm)

Technical Details and Specifications

The National 710429 drive axle shaft seal features a bi-directional lip design that ensures effective sealing against contaminants and fluid leakage in both rotational directions. Its fluoro-elastomer construction offers resistance to heat, oil, and other automotive fluids, making it suitable for demanding driveline applications. The seal’s precise dimensions, including a 1.380 inch (35.050 mm) inside diameter and a 2.291 inch (58.240 mm) outside diameter, ensure a proper fit within the axle housing bore of 2.288 inch (58.190 mm). The flanged outside diameter of 2.638 inch (67.000 mm) provides secure mounting and stability during operation.

Compatible Vehicles and Applications

This drive axle shaft seal is compatible with a range of Ford, Lincoln, Mazda, and Mercury models, including the Ford Explorer, Edge, Escape, Ranger, and Taurus, as well as the Lincoln MKX, MKZ, and Continental. It also fits Mazda B3000, B4000, Tribute, and Mercury Mariner and Mountaineer models. The part number 710429 is specifically designed to meet the sealing requirements of these vehicles’ driveline and axle systems.

Common Issues Addressed by the Drive Axle Shaft Seal

• Prevents oil and grease leaks from the axle housing
• Protects driveline components from dirt and moisture contamination
• Reduces wear and tear on axle shafts by maintaining proper lubrication
• Helps avoid costly repairs due to seal failure or fluid loss
• Maintains vehicle drivability and performance by ensuring proper axle sealing

Installation Notes and Tips

When installing the National 710429 drive axle shaft seal, ensure the axle shaft and housing bore are clean and free of debris. Use appropriate tools to press the seal evenly into the housing bore without damaging the sealing lip. Verify the seal’s orientation matches the bi-directional lip design for optimal performance. It is recommended to inspect related components such as bearings and axle shafts for wear during installation.

Quality Assurance and Warranty

National drive axle shaft seals are manufactured to meet industry standards for durability and performance. The fluoro-elastomer material and precise engineering contribute to long service life under normal operating conditions. While specific warranty details may vary, National products typically come with a limited warranty against manufacturing defects, ensuring confidence in the part number 710429 for your Ford, Lincoln, Mazda, or Mercury vehicle.