National 15245 Differential Pinion Race

National 15245 Differential Pinion Race Overview

The National 15245 differential pinion race is engineered for reliable driveline performance in a variety of vehicles including Buick, Chevrolet, Ford, Jeep, and Toyota models. This taper bearing cup is designed to meet precise specifications, ensuring proper fit and function in your vehicle's differential assembly.

• Cup Bore Diameter: 2.4410 inches (62.0010 mm)
• Cup Length: 0.5625 inches (14.2880 mm)
• Cup Radius: 0.0460 inches (1.1680 mm)
• Part Type: Taper bearing cup
• Compatible with multiple makes and models including Chevrolet Blazer, Ford F-250, Jeep Cherokee, and Toyota Pickup

Technical Details and Specifications

The National 15245 differential pinion race features a cup bore diameter of 2.4410 inches (62.0010 mm), providing a precise fit for the pinion bearing. The cup length measures 0.5625 inches (14.2880 mm), while the cup radius is 0.0460 inches (1.1680 mm), all critical dimensions that ensure proper seating and bearing alignment. This taper bearing cup is manufactured to meet OEM standards, making it suitable for use in a wide range of driveline and axle applications.

Compatible Vehicles and Applications

This differential pinion race is compatible with various makes and models, including Buick, Cadillac, Chevrolet, Chrysler, Dodge, Ford, GMC, Jaguar, Jeep, Mazda, Mercury, Oldsmobile, Plymouth, Pontiac, Rover, Saab, and Toyota. Common vehicle models include the Chevrolet Blazer, Ford F-250 and F-350 Super Duty, Jeep Cherokee, and Toyota Pickup. The part number 15245 ensures you receive the correct component for your specific application.

Common Issues Addressed by National 15245

• Worn or damaged pinion bearing surfaces causing noise or vibration
• Improper bearing fit leading to premature wear
• Leaking or failing differential seals due to bearing misalignment
• Excessive play in the differential pinion assembly
• Replacement during axle or differential rebuilds

Installation Notes and Tips

When installing the National 15245 differential pinion race, ensure the cup bore and bearing surfaces are clean and free of debris. Use proper tools to press the race evenly into the differential housing to avoid distortion. Verify the cup length and radius dimensions match OEM specifications for your vehicle model. It is recommended to inspect the pinion bearing and related components during installation to ensure optimal driveline performance.

Quality Assurance and Warranty

National parts are manufactured to meet or exceed OEM standards for durability and performance. The 15245 differential pinion race 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 your purchase.