National 711064 Drive Axle Shaft Seal - Rear

Overview of National 711064 Drive Axle Shaft Seal

The National 711064 drive axle shaft seal is engineered to provide reliable sealing performance for select GM vehicles. Designed with a bi-directional lip helix type and constructed from durable fluoro-elastomer material, this oil seal helps maintain axle integrity and prevent fluid leaks in Buick, Cadillac, Chevrolet, GMC, Pontiac, and Saturn models.

• Bi-directional lip design for effective sealing under varying pressure conditions
• Fluoro-elastomer material offers resistance to heat, oil, and wear
• Housing bore diameter of 1.929 inches (49.000 mm) ensures precise fit
• Outside diameter measures 1.937 inches (49.200 mm) for compatibility
• Shaft diameter of 1.378 inches (35.000 mm) matches OEM specifications
• Width of 0.610 inches (15.500 mm) for proper sealing depth
• Part of the 711000 series for consistent quality and fitment

Detailed Product Description

The National 711064 drive axle shaft seal is specifically designed to maintain the integrity of the driveline by preventing oil leaks and contamination. Its bi-directional lip helix design allows it to seal effectively against pressure from both directions, which is critical in axle applications where rotational forces and fluid pressures vary. The fluoro-elastomer construction provides enhanced durability and resistance to harsh automotive fluids and elevated temperatures, extending the service life of the seal.

With a housing bore of 1.929 inches (49.000 mm) and an outside diameter of 1.937 inches (49.200 mm), this seal fits precisely into the axle housing. The shaft diameter of 1.378 inches (35.000 mm) ensures a snug fit around the axle shaft, while the 0.610 inch (15.500 mm) width provides adequate sealing surface to prevent leaks. This part is compatible with a range of GM vehicles including Buick Enclave, Cadillac CTS, Chevrolet Equinox, GMC Terrain, Pontiac Torrent, and Saturn Vue, among others.

Compatible Vehicles and Applications

• Buick Enclave, Acadia
• Cadillac ATS, CTS
• Chevrolet Captiva Sport, Equinox, Traverse
• GMC Terrain, Acadia, Yukon (where applicable)
• Pontiac Torrent, Vibe
• Saturn Vue

Common Issues Addressed by the 711064 Drive Axle Shaft Seal

• Prevents oil leaks from the axle housing
• Protects driveline components from dirt and contaminants
• Reduces risk of axle shaft damage due to fluid loss
• Maintains proper lubrication within the axle assembly
• Helps avoid costly driveline repairs caused by seal failure

Installation Notes and Tips

Ensure the axle shaft and housing bore are clean and free of debris before installation. Carefully align the seal to avoid damage to the sealing lip. Use appropriate tools to press the seal evenly into the housing bore without distortion. Verify the seal is seated flush and inspect for any signs of damage prior to reassembly. Follow vehicle-specific service manual instructions for torque specifications and installation procedures.

Quality Assurance and Warranty

National drive axle shaft seals are manufactured to meet or exceed OEM specifications for fit, form, and function. The fluoro-elastomer material and bi-directional lip design contribute to long-lasting performance under demanding conditions. While specific warranty details are not provided, National products are generally backed by industry-standard warranties covering defects in material and workmanship.