CHEVROLET 340278 Muncie Fork Throwout Bearing Gm 73-84

( Brand: Chevrolet ), ( Manufacturer Part Number: 340278 ), ( Type: Shift Fork Sm465 ), ( Manufacturer Warranty: No Warranty ), ( Vintage Part: Yes ), ( Country Of Origin: United States ), ( Performance Part: No )

Review CHEVROLET Chevy Gmc Muncie Shift Fork Throwout Bearing 73-84 Gm #340278 fits SM465

The Chevrolet 340278 is a critical component for the smooth operation of the manual transmission in select Chevy, GMC, and Muncie vehicles from the years 1973 to 1984. This specific part is identified as the SM465 fork throwout bearing.

The throwout bearing, also known as the clutch bearing or the centrifugal bearing, is a crucial part of the clutch system. It allows the engine to continue rotating while the transmission is disengaged during a gear shift. Thus, providing a seamless transition between gears without stalling the engine.

The Chevrolet 340278 SM465 fork throwout bearing is a high-quality, precision-engineered component designed to meet the demands of heavy-duty usage. This bearing is manufactured using superior materials, ensuring durability, resistance to wear, and the ability to handle high loads.

The SM465 fork throwout bearing features a unique design with a fork and a throwout bearing assembly. The fork is the component that engages and disengages the clutch, while the throwout bearing is responsible for absorbing the force transmitted from the engine during a gear shift. The bearing is mounted on the transmission end of the clutch fork and has an external diameter of approximately 2.25 inches (57.15mm).

When the clutch pedal is depressed, the fork is pushed against the pressure plate, disengaging the clutch and allowing the transmission to shift gears. The throwout bearing absorbs the force generated by the engine and prevents it from stalling during this process.

The Chevrolet 340278 SM465 fork throwout bearing is easy to install, making it an ideal replacement part for DIY enthusiasts and professional mechanics alike. It comes complete with all necessary hardware and instructions for a straightforward installation process.

In summary, the Chevrolet 340278 SM465 fork throwout bearing is an essential component for maintaining the performance and functionality of the manual transmission system in Chevy, GMC, and Muncie vehicles produced between 1973 and 1984. Its precise engineering, high-quality materials, and straightforward installation make it an excellent choice for those seeking reliable and efficient transmission components.

Chevrolet 340278 (SM465) Fork Throwout Bearing for Chevy and GMC: A Comprehensive Analysis

The Chevrolet 340278 (SM465) Fork Throwout Bearing is a critical component for vehicles with a Muncie 4-speed transmission, manufactured by General Motors between 1973 and 1984. This part connects the steering shaft to the transmission and allows the vehicle to change direction. In this analysis, we'll discuss the benefits and drawbacks of purchasing this particular part, enabling potential buyers to make an informed decision.

1. OEM (Original Equipment Manufacturer) Part: By purchasing the Chevrolet 340278 (SM465) Fork Throwout Bearing directly from General Motors, you can ensure a perfect fit and high-quality manufacturing.

2. Reduced Vibration: This bearing is designed to minimize vibrations caused by misalignment between the steering shaft and transmission. A smooth and vibration-free steering experience is crucial for safe and comfortable driving.

3. Improved Performance: A worn-out or damaged fork throwout bearing can negatively impact the performance of your vehicle. By replacing it with a new one, you can restore the smooth operation of your transmission and improve overall performance.

4. Longer Lifespan: A high-quality OEM part like the Chevrolet 340278 (SM465) Fork Throwout Bearing is engineered to last longer than aftermarket alternatives. This can save you money and hassle in the long run.

1. Cost: The price of the Chevrolet 340278 (SM465) Fork Throwout Bearing is higher compared to aftermarket alternatives. However, you should consider the long-term benefits, such as improved performance and reliability.

2. Availability: Depending on your location, this part might not be readily available at your local parts store. You may need to order it online or from a specialized dealership.

3. Installation Complexity: Installing the Chevrolet 340278 (SM465) Fork Throwout Bearing requires some mechanical expertise. If you're not confident in your abilities, it's recommended to take your vehicle to a professional mechanic.

The Chevrolet 340278 (SM465) Fork Throwout Bearing is an essential component for the proper functioning of your Muncie 4-speed transmission. Although it comes with a higher price tag compared to aftermarket alternatives, the benefits, such as OEM quality, reduced vibration, improved performance, and longer lifespan, make it a worthwhile investment for vehicle owners seeking a reliable and high-performing driving experience. If you're unsure about the installation process or do not have the necessary tools and expertise, it's recommended to consult a professional mechanic for assistance.

If you own a vehicle with a Muncie 4-speed transmission manufactured between 1973 and 1984, we strongly recommend considering the purchase of the Chevrolet 340278 (SM465) Fork Throwout Bearing. This OEM part will provide you with a perfect fit, improved performance, and a longer lifespan, ensuring a safe and enjoyable driving experience. Should you require assistance with the installation process, do not hesitate to consult a professional mechanic.

Details:

Unsure of exact year it was removed from. Factory stamped with GM #340278. Was attached to a bell housing with GM casting number 6263756. Good used Muncie SM465 shift fork.

Fork has been cleaned, media blasted primed and painted satin black.

part #: 340278 prices

• $14.87-$65.00

specifications manutransmission:

• for makes: Chevy, Gmc, Chevrolet
• brand: Chevrolet
• mpn: 340278
• type: Shift Fork Sm465
• manufacturer warranty: No Warranty
• vintage part: Yes
• country of origin: United States
• performance part: No

returns manutransmission:

• policy: No Returns

offer manutransmission:

• sold: 0
• started: December 14, 2025
• options: Ship-to-home
• quantity: 1
• availability: In Stock

shipping manutransmission:

• transit: 4-9 Days
• class: Standard
• type: Calculated
• service: USPS Ground Advantage
• carrier: USPS
• cost: $0.00

seller manutransmission:

• city: Sanford, Michigan
• # reviews: 750
• rating: 100.0%

general manutransmission:

• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
• condition: Used

payments manutransmission:

• credit card: Visa
• wallet: Apple-pay
• other

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