1. Transmission Shifters For Sale
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  3. GM 3744970

GM 3744970 Nos Borg Warner Lever 4-SPEED 3/4

fits model: Corvette. make: Chevrolet. year: 1957–1963.

3744970 Gm Nos 1957 - 1963 Chevrolet Corvette 4-speed Borg Warner 3-4 Shift Lever

( Brand: Gm ), ( Manufacturer Part Number: 3744970 ), ( Type: Shift Lever ), ( Vintage Part: Yes ), ( Transmission Type: Manual )

Review GM Nos Chevrolet 4-speed Borg Warner 3-4 Shift Lever fits CORVETTE 1957–1963

The Borg Warner T10 4-speed manual transmission is a legendary gearbox that graced various American muscle cars during the golden era of automotive history, including the 1957 and 1963 Chevrolet Corvette. This transmission, identified by its GM part number 3744970, is a 3-speed synchro plus overdrive unit, which means it has three forward gears with synchronizers for smooth and easy shifting, and an overdrive gear for improved fuel economy and reduced engine RPMs at highway speeds.

The T10 transmission was renowned for its robustness and durability, making it the go-to transmission for high-performance applications. Its compact design allowed it to fit into the confined engine bay of the Corvette, yet it provided enough gearing range to harness the power of the small-block Chevrolet V8 engines.

The shifter for the T10 transmission is a 3-lever unit, also known as a "floor shift" or "console shift" configuration. This design places the shifter in a more central location, making it easier for the driver to reach and operate it. The three levers correspond to the first three forward gears, with the overdrive gear being engaged and disengaged using a separate switch, often located on the shifter knob or on the steering column.

The engagement of gears in the T10 transmission is accomplished via a synchronizer system. Synchronizers help to match the rotational speeds of the two engaging gears, which reduces the grinding and clashing noises that can occur during shifts. This results in smoother, more precise gear changes, which is a crucial aspect of any enjoyable driving experience.

The T10 transmission was also known for its adaptability. It could be mated to a variety of engines and applications, making it a versatile choice for hot rodders and restorers. Its popularity among Corvette enthusiasts is due, in part, to its ability to handle the increased power output of the high-performance engines that became available during the 1950s and 1960s.

In summary, the Borg Warner T10 4-speed manual transmission, GM part number 3744970, is an essential component for any 1957 or 1963 Chevrolet Corvette restoration or performance build. Its legendary status, robust build quality, and ease of use make it a must-have for those seeking an authentic and engaging driving experience from their classic Corvette.

Buying a 1957-1963 Chevrolet Corvette with a 4-speed Borg Warner 3-4 lever transmission can be an exciting venture for classic car enthusiasts. Here are some pros and cons to help you make an informed decision:

Pros:

1. Authenticity: A 4-speed manual transmission was an optional feature for Corvettes during the 1957-1963 era. Finding a Corvette with this original transmission can add to its value and authenticity for collectors.

2. Enhanced Performance: A 4-speed manual transmission can provide better acceleration and overall performance compared to the standard automatic transmissions of the time.

3. Control: Manual transmissions offer more control over the vehicle, allowing for better driving experience and engagement.

4. Rarity: A 4-speed manual transmission was not a common option during this era, making a Corvette with this feature a rare find.

5. Cost-Effective: Manual transmissions typically have fewer moving parts than automatic transmissions, which can result in lower maintenance and repair costs.

Cons:

1. Complexity: Manual transmissions are more complex than automatic transmissions, and may require more maintenance and adjustments to keep them in good condition.

2. Difficulty in Finding Spare Parts: Due to the rarity of 4-speed manual transmissions in Corvettes of this era, finding spare parts for repairs can be challenging and expensive.

3. Learning Curve: If you're not already familiar with manual transmissions, there can be a learning curve to mastering the operation of a 4-speed lever transmission.

4. Shift Quality: The shift quality of a 4-speed lever transmission may not be as smooth as that of modern manual transmissions, which can make for a less enjoyable driving experience for some.

5. Limited Availability: Due to the rarity of 4-speed manual transmissions in Corvettes of this era, finding a car with this feature can be difficult and time-consuming.

Conclusion:

A 1957-1963 Chevrolet Corvette with a 4-speed Borg Warner 3-4 lever transmission can offer a unique and exciting driving experience with enhanced performance and authenticity. However, it also comes with added complexity, potential difficulty in finding spare parts, and a learning curve for those not already familiar with manual transmissions. Ultimately, the decision to buy one depends on your preferences, expertise, and willingness to invest time and resources in maintaining the transmission.

Recommendation:

If you're set on buying a 1957-1963 Chevrolet Corvette with a 4-speed Borg Warner 3-4 lever transmission, it's recommended to thoroughly research and inspect the car before making a purchase. Look for a reputable seller, and consider having the transmission inspected by a professional mechanic to ensure it's in good condition. Additionally, be prepared for the added maintenance and potential repair costs associated with a manual transmission. If you're not confident in your ability to maintain the transmission yourself, consider budgeting for professional maintenance and repair services.

Details:

I don't have the original packaging. The condition is nice with no issues other than some minor surface rust. The lever is new old stock GM, part number 3744970. One NOS GM 1957 - 1963 Corvette with the Borg-Warner 4-speed transmission, 3-4 shift lever.

specifications geashif:

  • for models: Corvette
  • for makes: Chevrolet
  • for years: 1957-1963
  • brand: Gm
  • mpn: 3744970
  • type: Shift Lever
  • vintage part: Yes
  • transmission type: Manual

returns geashif:

  • time: 14 Days
  • paid by: Buyer
  • policy: Returns Accepted

offer geashif:

  • sold: 0
  • started: March 15, 2025
  • best offers: True
  • availability: In Stock
  • options: Ship-to-home
  • quantity: 1

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  • class: Expedited
  • carrier: USPS
  • transit: 4-9 Days
  • type: Fixed
  • service: USPS Priority Mail
  • cost: $10.95

seller geashif:

  • rating: 100.0%
  • city: Merced, California
  • # reviews: 7782

general geashif:

  • Car Truck Parts Accessories > Transmission Drivetrain > Shifters, Cables Linkages
  • condition: New other see details
for models: corvette, for makes: chevrolet, for years: 1957-1963, type: shift lever, vintage part: yes, transmission type: manual,
category: auto parts > car truck parts accessories > transmission drivetrain > shifters, cables linkages, sku: 13941727238023693,
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