National 382S Axle Differential Bearing Race - Front or Rear

Overview of National 382S Axle Differential Bearing Race

The National 382S axle differential bearing race is engineered for reliable performance in a variety of vehicles including Chevrolet, Dodge, Ford, GMC, Jeep, and Plymouth models. Designed as a taper bearing cup, this component ensures proper fit and function within the driveline and axle assembly.

• Cup Bore Diameter: 3.8125 inches (96.8380 mm)
• Cup Length: 0.7982 inches (20.2740 mm)
• Cup Radius: 0.0930 inches (2.3620 mm)
• Part Type: Taper bearing cup
• Compatible with multiple truck and SUV models

Technical Specifications and Attributes

The National 382S bearing race features a precise cup bore diameter of 3.8125 inches (96.8380 mm), which is critical for maintaining proper bearing alignment and load distribution. Its cup length measures 0.7982 inches (20.2740 mm), providing the necessary depth for secure seating within the axle differential assembly. The cup radius of 0.0930 inches (2.3620 mm) supports smooth rotation and reduces wear on mating components. This taper bearing cup is manufactured to meet OEM standards, ensuring compatibility and durability across various vehicle applications.

Compatible Vehicles and Applications

This axle differential bearing race is compatible with a wide range of Chevrolet, Dodge, Ford, GMC, Jeep, and Plymouth vehicles. Notable models include Chevrolet Blazer, C10 Suburban, and Colorado; Dodge Ram 2500 and 3500 series; Ford F-100 through F-350 Super Duty; GMC Canyon and Jimmy; Jeep Cherokee and Plymouth B300 series. The part number 382S is specifically designed to fit these models, providing a reliable replacement for worn or damaged bearing races.

Common Issues Addressed by National 382S

• Eliminates excessive play or looseness in the axle differential
• Prevents premature bearing wear due to improper fit
• Reduces noise and vibration from worn bearing surfaces
• Restores proper alignment of the differential assembly
• Helps maintain drivetrain efficiency and longevity

Installation Notes and Tips

When installing the National 382S axle differential bearing race, ensure the cup bore and seating surfaces are clean and free of debris. Use appropriate tools to press the bearing race evenly into place without damaging the cup radius or bore. Verify fitment against the vehicle’s service manual specifications, especially for Chevrolet Blazer, Ford F-250, or Dodge Ram models. Proper lubrication of mating surfaces is recommended to facilitate installation and initial operation.

Quality Assurance and Warranty

National manufactures the 382S bearing race to meet stringent quality standards, ensuring consistent performance and durability. While specific warranty details may vary, National products typically come with a limited warranty against defects in materials and workmanship. This provides assurance of the part’s reliability when installed according to manufacturer guidelines.