1939–1948 Chevrolet Car & 1941–1946 Chevrolet Truck NOS Upper Mast Jacket Bearing Assembly #264887

Offered for sale is a genuine New Old Stock (NOS) Chevrolet Upper Mast Jacket Bearing Assembly, part number 264887, correct for many 1939–1948 Chevrolet passenger cars and 1941–1946 Chevrolet trucks. This original GM steering column component is a rare and highly desirable restoration part for collectors, restorers, and enthusiasts seeking authentic factory hardware for pre-war and post-war Chevrolet vehicles.

The steering system is one of the most important mechanical assemblies in any vehicle, and the mast jacket bearing assembly plays a critical role in supporting the steering shaft within the steering column. Proper operation of this component helps ensure smooth steering movement, minimizes shaft play, and contributes to safe and reliable vehicle control.

Chevrolet vehicles produced between the late 1930s and mid-1940s represent a significant era in American automotive history. These cars and trucks served families, businesses, farms, and military-related industries during a period that included both the final years before World War II and the early years of post-war production. Today, these classic Chevrolets are highly respected by collectors who appreciate their engineering, styling, and historical significance.

Over the decades, steering column components are often subjected to wear, corrosion, contamination, improper repairs, and general deterioration. Bearings can become noisy, loose, worn, or damaged, affecting steering feel and overall vehicle operation. During restoration projects, replacing worn steering components with genuine GM parts is one of the best ways to maintain authenticity and restore proper function.

This Upper Mast Jacket Bearing Assembly was manufactured by General Motors and remained unused in inventory for decades. Unlike used components or reproduction alternatives, this NOS assembly retains the original materials, dimensions, and engineering specifications intended by Chevrolet.

For enthusiasts performing factory-correct restorations, original steering components are especially valuable because they contribute to both vehicle safety and historical accuracy.

Product Features

• Genuine General Motors New Old Stock (NOS) part
• Chevrolet Part Number: 264887
• Original Upper Mast Jacket Bearing Assembly
• Correct for many 1939–1948 Chevrolet passenger cars
• Correct for many 1941–1946 Chevrolet truck applications
• Factory-original steering column component
• Never installed on a vehicle
• Original GM manufacturing quality
• Ideal for restoration and repair projects
• Rare vintage Chevrolet steering system part

Vehicle Compatibility

Commonly associated with:

Chevrolet Passenger Cars

• 1939 Chevrolet
• 1940 Chevrolet
• 1941 Chevrolet
• 1942 Chevrolet
• 1946 Chevrolet
• 1947 Chevrolet
• 1948 Chevrolet

Chevrolet Trucks

• 1941 Chevrolet Truck
• 1942 Chevrolet Truck
• 1946 Chevrolet Truck

Fitment may vary depending on model, steering column configuration, and production specifications. Buyers should verify compatibility before purchase.

Why Choose NOS GM Steering Components?

New Old Stock parts are highly sought after because they were manufactured by the original vehicle manufacturer and never installed. These components provide factory-correct fitment, materials, and construction that are often difficult to duplicate with modern replacements.

For critical steering system components, original GM parts help preserve authenticity while maintaining proper operation and reliability.

Importance of the Upper Mast Jacket Bearing Assembly

The upper mast jacket bearing assembly supports the steering shaft within the steering column and helps maintain proper alignment during operation. A worn or damaged bearing can contribute to steering looseness, vibration, noise, and reduced driving comfort.

Replacing worn steering components with genuine GM assemblies helps restore proper steering performance and preserves the original driving characteristics of the vehicle.

Condition

This Upper Mast Jacket Bearing Assembly is described as New Old Stock (NOS). The assembly has never been installed and remains an original GM service replacement component. Due to decades of storage, minor shelf wear, packaging deterioration, or handling marks may be present.

Buyers should carefully review all available photographs to determine the exact condition of the part being offered.

Perfect for Restoration Projects

Whether you are completing a concours-level restoration, rebuilding a steering column, preserving a survivor vehicle, or replacing worn steering components, this NOS bearing assembly provides an outstanding opportunity to obtain authentic Chevrolet hardware.

Original steering parts are becoming increasingly difficult to locate, particularly for pre-war and immediate post-war Chevrolet applications. This assembly helps ensure a more accurate restoration while maintaining factory-correct operation.

Collector Appeal

Chevrolet vehicles from the 1939–1948 era remain highly desirable among collectors due to their historical significance and classic styling. As supplies of original GM service parts continue to diminish, authentic NOS steering components have become increasingly valuable.

This genuine NOS Upper Mast Jacket Bearing Assembly #264887 represents an excellent opportunity to acquire an original Chevrolet steering component for your restoration project. Whether installed on a vehicle or preserved in a vintage parts collection, it remains an important piece of Chevrolet automotive history.