GM 591399 Nos United Delco Trans Countershaft Gear

( Brand: Gm ), ( Manufacturer Part Number: 591399 ), ( Type: Chevrolet Gmc ), ( Material: Steel ), ( Vintage Part: Yes ), ( Universal Fitment: No )

Review GM Nos United Delco Speed Trans Countershaft Gear Chevrolet Trucks fits 1948-59

United Delco Trans Countershaft Gear (GM Part Number: 591399)

The United Delco Trans Countershaft Gear, specifically engineered for Chevrolet vehicles from the years 1948 to 1959 (GM Part Number: 591399), is a crucial component of the transmission system. This gear plays a pivotal role in the efficient operation of your classic Chevrolet automobile.

The Trans Countershaft Gear is designed to interface with the transmission countershaft, which is responsible for transferring engine power to the transmission gears. This gear is integral to the powertrain mechanism, enabling smooth gear changes and proper engagement between the engine and the transmission.

Constructed from high-quality materials, this United Delco Trans Countershaft Gear is engineered to provide reliable performance and durability. It is manufactured to meet the exacting standards of General Motors, ensuring a perfect fit and function in your classic Chevrolet vehicle.

The gear's teeth are precision-machined to ensure proper engagement with the other transmission components. The gear surface is treated with a durable finish to protect against wear and corrosion, ensuring long-lasting performance.

Installation of the United Delco Trans Countershaft Gear is a straightforward process, typically involving the removal of the old gear and the installation of the new one. However, it is always recommended to consult your vehicle's service manual or consult with a professional mechanic to ensure a successful installation.

By investing in a United Delco Trans Countershaft Gear, you are ensuring the continued reliability and performance of your classic Chevrolet vehicle. This component is an essential upgrade for any enthusiast looking to restore their automobile to its original glory. With its high-quality construction and proven performance, this gear is an excellent choice for those seeking to maintain their classic Chevrolet in top condition.

The GM 591399 NOS (New Old Stock) United Delco Trans Countershaft Gear is a replacement part designed for Chevrolet vehicles manufactured between 1948 and 1959. This part is essential for the proper functioning of the transmission system. Let's discuss the pros and cons of buying this part:

1. Authenticity: This is a new old stock part, meaning it is an original equipment manufacturer (OEM) part that has been in storage for several decades. It is an exact match to the original part, ensuring a perfect fit and reliable performance.

2. Durability: As this part is new, it is likely to be in good condition and free from the wear and tear that comes with used parts. This can save you from the hassle of having to replace the part again in the near future.

3. Availability: NOS parts are becoming increasingly rare, making it an excellent choice for collectors or restorers who want to maintain the authenticity of their vehicles.

4. Peace of mind: With a new part, you can have confidence that it will perform optimally and that any potential issues are covered under the warranty, if applicable.

1. Cost: NOS parts can be more expensive than their used counterparts due to their scarcity. In some cases, the cost difference may not be significant, but in others, it could be a substantial investment.

2. Limited availability: NOS parts may not be readily available from every supplier or dealer, so you may need to do some research to find a reliable source.

3. Potential for compatibility issues: While this part is designed for specific Chevrolet models, there is always a risk that it may not be a perfect fit for your particular vehicle due to variations in manufacturing processes or wear on other components.

The GM 591399 NOS United Delco Trans Countershaft Gear is an excellent choice for those who value authenticity, durability, and reliability. However, it comes with a higher price tag compared to used parts. Additionally, limited availability and potential compatibility issues may require additional research and effort to find and install the part. Ultimately, the decision to purchase this part depends on your priorities, budget, and the specific needs of your Chevrolet vehicle.

If you are restoring a vintage Chevrolet and wish to maintain its authenticity, or if you require a reliable and durable replacement part, the GM 591399 NOS United Delco Trans Countershaft Gear is an excellent choice. Be sure to research reputable suppliers and dealers to ensure the availability and compatibility of the part for your specific vehicle model.

Details:

The NOS United Delco 4 Speed Trans Countershaft Gear 591399 is a genuine GM part designed for Chevrolet and GMC trucks from 1948 to 1959. This high-quality countershaft gear is essential for the proper functioning of 4-speed transmission in these vehicles.

part #: 591399 prices

• $19.99-$75.00

specifications manutransmission:

• for makes: Chevrolet
• for years: 1948-59
• brand: Gm
• mpn: 591399
• type: Chevrolet Gmc
• material: Steel
• vintage part: Yes
• universal fitment: No

returns manutransmission:

• policy: No Returns

shipping manutransmission:

• service: USPS Ground Advantage
• type: Calculated
• cost: $9.13
• class: Standard
• transit: 5-13 Days
• carrier: USPS

seller manutransmission:

• # reviews: 96
• rating: 100.0%
• city: Newport News, Virginia

offer manutransmission:

• availability: In Stock
• best offers: True
• started: December 13, 2025
• sold: 0
• quantity: 1
• options: Ship-to-home

general manutransmission:

• Car Truck Parts Accessories > Transmission Drivetrain > Manual Transmission Parts
• condition: New other see details

payments manutransmission:

• other
• credit card: Diners-club
• wallet: Google-pay

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