National 450444 Wheel Seal - Rear

National 450444 Wheel Seal for Ford Thunderbird

The National 450444 wheel seal is engineered to provide reliable sealing performance for your Ford Thunderbird driveline system. Designed with precision dimensions and durable nitrile material, this oil seal helps maintain optimal axle function and prevent fluid leaks.

• Inside diameter: 1.375 inches (34.930 mm)
• Outside diameter: 2.506 inches (63.650 mm)
• Housing bore: 2.502 inches (63.550 mm)
• Width: 0.500 inches (12.700 mm)
• Material: Nitrile rubber for enhanced resistance to oil and wear
• Redicoat surface treatment for improved sealing and durability
• Series: 450000, Type 45 oil seal

Detailed Product Description

The National 450444 wheel seal is specifically designed for use in the driveline and axle assemblies of Ford Thunderbird vehicles. Constructed from nitrile, a synthetic rubber known for its resistance to petroleum-based fluids and abrasion, this seal ensures long-lasting protection against oil leaks. The precise inside diameter of 1.375 inches and outside diameter of 2.506 inches allow for a secure fit within the axle housing bore of 2.502 inches, maintaining a tight seal around the shaft. The 0.500-inch width provides adequate surface area to prevent fluid escape while accommodating shaft movement. Additionally, the Redicoat treatment enhances the seal’s ability to resist wear and maintain integrity under varying operating conditions.

Applications and Problem Solving

• Prevents axle oil leaks in Ford Thunderbird driveline systems
• Protects against contamination entering the axle housing
• Reduces wear on axle shafts by maintaining proper lubrication
• Helps avoid costly repairs due to seal failure or fluid loss
• Maintains driveline efficiency and vehicle safety

Installation Notes and Tips

• Ensure the axle shaft and housing bore 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 lip is properly oriented toward the lubricant side
• Inspect the shaft for wear or damage that could compromise the seal
• Apply a light coating of compatible lubricant on the seal lip before installation

Quality Assurance and Warranty

National wheel seals are manufactured to meet strict industry standards for durability and performance. The 450444 seal undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty terms may vary, National typically offers coverage against manufacturing defects to provide confidence in product reliability for Ford Thunderbird applications.