National 710497 Drive Axle Shaft Seal - Front Inner

Overview of National 710497 Drive Axle Shaft Seal

The National 710497 drive axle shaft seal is engineered for reliable sealing performance in Chevrolet and GMC heavy-duty trucks and SUVs. Designed with a bi-directional lip and polyacrylate material, this oil seal helps maintain driveline integrity by preventing fluid leaks and contamination.

• Constructed from durable polyacrylate material for enhanced wear resistance
• Bi-directional lip design ensures effective sealing under varying rotational directions
• Inside diameter of 1.614 inches (41.000 mm) fits specific axle shafts precisely
• Outside diameter measures 2.407 inches (61.140 mm) for secure housing bore fit
• Thickness of 0.630 inches (16.000 mm) provides robust sealing surface

Technical Specifications and Design Features

The National 710497 drive axle shaft seal belongs to the 710400 series and is designed to meet the demanding requirements of driveline and axle sealing systems. Its polyacrylate construction offers resistance to heat, oil, and wear, making it suitable for heavy-duty applications. The seal features a 32-type design with a bi-directional helix lip, which enhances sealing efficiency by preventing oil leakage in both rotational directions. The precise dimensions, including a 1.614-inch shaft diameter and a 2.407-inch housing bore outside diameter, ensure a tight fit for Chevrolet Avalanche 2500, GMC Sierra 2500 HD, and other compatible models.

Compatible Vehicles and Applications

This drive axle shaft seal is compatible with a range of Chevrolet and GMC trucks and SUVs, including:

• Chevrolet Avalanche 2500
• Chevrolet K2500, K2500 Suburban, K3500
• Chevrolet Silverado 1500 HD, 2500, 3500 and their Classic and HD variants
• GMC Sierra 1500 HD, 2500, 3500 and their Classic and HD variants
• GMC Suburban 2500 and Yukon XL 2500

Common Issues Addressed by the 710497 Seal

• Prevents oil leaks from the drive axle shaft area
• Protects axle components from dirt and debris contamination
• Reduces premature wear of axle bearings and seals
• Maintains proper lubrication within the driveline system
• Helps avoid costly driveline repairs due to seal failure

Installation Notes and Tips

When installing the National 710497 drive axle shaft seal, ensure the following for optimal performance:

• Clean the housing bore and shaft thoroughly before installation
• Verify the seal orientation matches the bi-directional lip design
• Use appropriate tools to avoid damaging the seal during installation
• Check shaft and bore dimensions to confirm compatibility
• Apply a light coat of lubricant on the seal lip to ease installation

Quality Assurance and Warranty

National drive axle shaft seals are manufactured to meet industry standards for durability and performance. The 710497 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability.