National 382 Automatic Transmission Differential Race - Rear Inner, Rear Outer or Rear Right

Overview of National 382 Automatic Transmission Differential Race

The National 382 automatic transmission differential race is engineered to meet the precise specifications required for reliable transmission performance. Designed for select Cadillac, Chevrolet, Ford, GMC, and Oldsmobile models, this taper bearing cup ensures proper fit and function in your vehicle's transmission system.

• Compatible with Cadillac Eldorado and Oldsmobile Toronado models
• Fits Chevrolet C3500, GMC K3500, P30, and P3500 trucks
• Cup bore diameter of 3.8750 inches (98.4250 mm) for accurate seating
• Cup length of 0.7018 inches (17.8260 mm) for proper engagement
• Cup radius of 0.0310 inches (0.7870 mm) to maintain bearing alignment

Detailed Product Specifications

The National 382 features a taper bearing cup design with a cup bore measuring 3.8750 inches (98.4250 mm), ensuring a precise fit within the transmission assembly. The cup length of 0.7018 inches (17.8260 mm) provides the necessary depth for secure bearing placement, while the cup radius of 0.0310 inches (0.7870 mm) supports smooth rotational movement and reduces wear. These dimensions are critical for maintaining the integrity of the automatic transmission differential race, contributing to consistent performance and longevity.

Applications and Problem Resolution

This automatic transmission differential race is specifically compatible with various heavy-duty and passenger vehicles, including the Cadillac Eldorado, Chevrolet C3500, Ford F-350, GMC K3500, P30, P3500, and Oldsmobile Toronado. It addresses common transmission issues such as:

• Excessive bearing wear causing transmission noise
• Improper bearing seating leading to premature failure
• Transmission slippage due to worn differential race components
• Vibration and rough shifting caused by damaged bearing cups
• Reduced transmission efficiency from misaligned bearing surfaces

Installation Notes and Tips

When installing the National 382 automatic transmission differential race, ensure the transmission housing is clean and free of debris. Proper lubrication of the bearing surfaces is essential to prevent premature wear. Use appropriate tools to press the taper bearing cup evenly into place, avoiding damage to the cup bore or radius. Verify fitment compatibility with your specific vehicle model before installation.

Quality Assurance and Warranty

National parts are manufactured to meet industry standards for durability and precision. The 382 automatic transmission differential race undergoes rigorous quality control to ensure dimensional accuracy and material integrity. While specific warranty details are not provided, National products typically adhere to OEM quality requirements, offering reliable performance for compatible Cadillac, Chevrolet, Ford, GMC, and Oldsmobile vehicles.