National 710101 Drive Axle Shaft Seal - Front Inner

Overview of National 710101 Drive Axle Shaft Seal

The National 710101 drive axle shaft seal is engineered to provide reliable sealing performance for select Chevrolet and GMC vehicles. Designed with nitrile material and a bi-directional lip design, this oil seal helps maintain axle integrity and prevent fluid leaks.

• Constructed from durable nitrile material for resistance to oil and wear
• Bi-directional helix lip design enhances sealing efficiency
• Inside diameter of 1.250 inches (31.750 mm) fits specified axle shafts
• Outside diameter measures 2.402 inches (61.010 mm) with a flanged outside diameter of 2.677 inches (68.000 mm)
• Overall width with side lip is 0.366 inches (9.300 mm) for secure housing fit

Technical Specifications and Design Features

The National 710101 drive axle shaft seal features a 74-type design optimized for driveline sealing applications. Its nitrile composition offers excellent resistance to petroleum-based fluids and temperature variations commonly encountered in automotive environments. The seal’s bi-directional helix lip design ensures effective sealing against contaminants and fluid leakage in both rotational directions. With an inside diameter of 1.250 inches (31.750 mm) and an outside diameter of 2.402 inches (61.010 mm), this seal fits axle shafts and housing bores precisely, including a flanged outside diameter of 2.677 inches (68.000 mm) to enhance installation stability. The thickness of 0.228 inches (5.790 mm) and overall width with side lip of 0.366 inches (9.300 mm) provide a robust barrier to maintain axle lubrication.

Compatible Vehicles and Applications

This drive axle shaft seal is compatible with a range of Chevrolet and GMC models, including Blazer, K1500, K1500 Suburban, K2500, K2500 Suburban, Tahoe, and Yukon. It is specifically designed to meet the sealing requirements of these vehicles’ driveline and axle assemblies, ensuring proper fit and function.

• Prevents oil leaks from the drive axle shaft
• Protects axle bearings from dirt and debris contamination
• Maintains proper lubrication within the axle housing
• Reduces risk of premature axle component wear
• Helps avoid driveline noise caused by seal failure

Installation Notes and Tips

When installing the National 710101 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. Lubricate the seal lip lightly with clean axle oil before installation to reduce initial wear. Check for proper seating and alignment to prevent leaks.

Quality Assurance and Warranty

National manufactures the 710101 drive axle shaft seal to meet industry standards for durability and performance. The nitrile material and precision dimensions are tested to ensure consistent sealing capability. While specific warranty details are not provided, National products typically adhere to quality control processes that support reliable service life in compatible Chevrolet and GMC vehicles.