1955–1956 Chevrolet 150, 210, Bel Air & Corvette C1 NOS Rear Axle Bearing #954861 / #3707387 / RW507

Available for sale is a genuine General Motors New Old Stock (NOS) Rear Axle Bearing, GM part numbers 954861 and 3707387, with industry interchange number RW507, designed for 1955–1956 Chevrolet 150, 210, Bel Air, and Corvette C1 applications. This original GM service replacement component is a rare and highly desirable drivetrain part for restorers seeking factory-correct rear axle components.

The 1955 and 1956 Chevrolet models marked the beginning of Chevrolet’s legendary “Tri-Five” era. These vehicles introduced modern styling, improved chassis design, and the revolutionary small-block V8 engine that would become one of the most influential engines in automotive history. During the same period, the early Corvette C1 continued to establish itself as America’s premier sports car.

The rear axle bearing is a critical component within the rear axle assembly. It supports the axle shaft while allowing smooth rotation under load. Proper bearing operation helps maintain axle alignment, reduce friction, minimize vibration, and ensure dependable drivetrain performance.

Over decades of use, axle bearings can become worn due to mileage, contamination, lubrication breakdown, and normal mechanical stress. Common symptoms of bearing failure include humming or grinding noises, vibration, excessive axle movement, seal leakage, and accelerated wear of surrounding components.

This component is a true New Old Stock (NOS) GM service replacement part, meaning it was manufactured during the original production era and has never been installed. It retains original factory dimensions, materials, and engineering specifications intended by General Motors.

Unlike many modern replacement bearings, NOS GM components provide authentic manufacturing quality and period-correct construction, making them especially valuable for concours restorations and factory-correct rebuilds.

For restorers and collectors, maintaining original drivetrain components is essential for preserving authenticity, reliability, and long-term value. Whether restoring a Tri-Five Chevrolet or an early Corvette C1, this bearing helps ensure smooth axle operation and proper drivetrain performance.

As original Chevrolet rear axle service components become increasingly difficult to source, NOS bearings such as this remain highly sought after by collectors, restoration professionals, and vintage Chevrolet enthusiasts.

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Product Features

• Genuine General Motors New Old Stock (NOS) part
• GM Part Numbers: 954861 / 3707387
• Industry Interchange: RW507
• Rear Axle Bearing Assembly
• Designed for 1955–1956 Chevrolet passenger car and Corvette applications
• Supports proper axle shaft alignment and rotation
• Helps reduce friction, vibration, and drivetrain wear
• Factory-correct GM service replacement component
• Original period-correct construction
• Never installed
• Ideal for restoration and rear axle rebuild projects
• Rare Tri-Five Chevrolet and Corvette drivetrain component

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Vehicle Compatibility

Fits:

• 1955 Chevrolet 150
• 1955 Chevrolet 210
• 1955 Chevrolet Bel Air
• 1955 Chevrolet Corvette C1
• 1956 Chevrolet 150
• 1956 Chevrolet 210
• 1956 Chevrolet Bel Air
• 1956 Chevrolet Corvette C1

Compatibility may vary depending on rear axle configuration and production specifications. Buyers should verify fitment before purchase.

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Condition

This item is offered in New Old Stock (NOS) condition. It has never been installed and remains an original GM service replacement component. Due to decades of storage, minor shelf wear, preservative residue, packaging wear, or light surface oxidation may be present.

Please review all available photographs carefully to determine the exact condition of the item being offered.

For collectors and restoration enthusiasts seeking authentic GM drivetrain components, this 1955–1956 Chevrolet 150, 210, Bel Air & Corvette C1 NOS Rear Axle Bearing #954861 / #3707387 / RW507 represents an excellent opportunity to restore proper rear axle performance, preserve factory-correct originality, and maintain the long-term value of a classic Chevrolet or Corvette restoration.