National 3984 Axle Differential Bearing - Rear, Rear Inner or Rear Outer

Overview of National 3984 Axle Differential Bearing

The National 3984 axle differential bearing is engineered for reliable performance in heavy-duty vehicles. Designed to meet the specifications required by Chevrolet, Dodge, GMC, and Ram models, this taper bearing cone ensures precise fitment and durability.

• Compatible with Chevrolet Silverado 3500 and Sierra 3500 HD
• Fits Dodge Ram 2500 and 3500 series trucks
• Cone bore diameter of 2.6250 inches (66.675 mm)
• Cone length measures 1.1830 inches (30.048 mm)
• Cone radius of 0.1400 inches (3.556 mm) for accurate seating

Technical Specifications and Features

The National 3984 axle differential bearing features a taper bearing cone designed to fit axle differentials in select heavy-duty trucks. The cone bore diameter of 2.6250 inches (66.675 mm) and cone length of 1.1830 inches (30.048 mm) provide a precise fit for optimal bearing performance. The cone radius of 0.1400 inches (3.556 mm) ensures proper seating and load distribution within the differential assembly.

Application and Vehicle Compatibility

This axle differential bearing is compatible with a range of Chevrolet, Dodge, GMC, and Ram vehicles, including Chevrolet Silverado 3500 Classic, Sierra 1500, and Sierra 3500 models, as well as Dodge Ram 2500 and 3500 trucks. It is specifically designed for use in heavy-duty driveline and axle assemblies requiring a taper bearing cone with these dimensions.

• Replaces worn or damaged axle differential bearings
• Addresses noise or roughness in the differential
• Helps correct excessive play or looseness in axle components
• Supports proper alignment and rotation of differential gears
• Prevents premature wear of axle and driveline parts

Installation Notes and Tips

When installing the National 3984 axle differential bearing, ensure the bearing cone bore and length match the axle specifications. Proper cleaning and lubrication of the bearing seat and surrounding components are essential for optimal performance. Use appropriate tools to avoid damage to the bearing cone radius and ensure correct seating within the differential assembly.

Quality Assurance and Warranty

National bearings are manufactured to meet industry standards for durability and precision. The 3984 axle differential bearing undergoes rigorous quality control to ensure consistent performance. Warranty coverage details should be confirmed with the product documentation or manufacturer.