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  3. CHEVY 2423720

CHEVY 2423720 Nos Spicer Transmission Clutch Synchronizer 706752 General 5-SPEED

fits make: Chevy, Gmc. year: 1963–1973.

2423720 General Motors Nos 1963-1973 Chevy Gmc Truck 5-speed Spicer Transmission Clutch Synchronizer

( Brand: Chevy ), ( Manufacturer Part Number: 2423720 ), ( Part Type: Transmission Clutch Motor ), ( Ipn: 706752 ), ( Vintage Part: Yes ), ( Transmission Models: 5052c 5652b 5756b 5252a 5052a 312764-x 310811x ), ( Keywords: 427 Engine 409 Engine Dump Truck Series 50 60 70 80 Dana )

Review CHEVY General Motors Nos Gmc Truck 5-speed Spicer Transmission Clutch Synchronizer fits 1963–1973

Introducing the Spicer Transmission Clutch Synchronizer, a crucial component for your 1963 to 1973 Chevy or GMC vehicles with a 2423720 nos 5-speed transmission. This synchronizer plays a vital role in ensuring a smooth and efficient gear change experience.

The Spicer Transmission Clutch Synchronizer is meticulously engineered to reduce friction between gears during a shift, minimizing wear on the synchronizer rings and transmission components. This results in a more refined driving experience, reducing the harshness often associated with manual transmission shifts.

Designed specifically for Chevy and GMC applications, this synchronizer is manufactured using high-quality materials and advanced manufacturing processes. The synchronizer rings are made from a heat-treated alloy steel for durability and strength, ensuring they can handle the rigors of daily driving and the occasional high-performance application.

The synchronizer's design features a unique labyrinth seal that effectively keeps contaminants out of the synchronizer chamber while allowing the necessary lubrication in. This seal also helps to minimize noise and vibration, contributing to a more pleasant driving experience.

Installing the Spicer Transmission Clutch Synchronizer is a straightforward process. It is designed to be a direct replacement for the original part, making it an excellent option for those seeking an OEM-style upgrade or those in need of a reliable replacement.

In summary, the Spicer Transmission Clutch Synchronizer for 1963 to 1973 Chevy and GMC vehicles is an essential upgrade for those seeking a smoother, more efficient, and refined gear change experience. Its high-quality design, durability, and ease of installation make it an excellent value for enthusiasts and daily drivers alike.

Buying a 1963-1973 Chevy GMC 5-speed Spicer transmission with a clutch synchronizer can be a viable option for those looking to upgrade their classic vehicle or restore a vintage one. However, like any automotive purchase, it comes with its own set of pros and cons.

Pros:

1. Improved Performance: The 5-speed transmission provides better acceleration and smoother shifting compared to the original 3-speed automatic or 4-speed manual transmission.

2. Fuel Efficiency: With more gears to choose from, a 5-speed transmission can help improve fuel efficiency.

3. Durability: The Spicer transmission is known for its durability and reliability, making it a popular choice among classic car enthusiasts.

4. Customizability: A 5-speed transmission allows for more customization options, such as the ability to add a clutch synchronizer for smoother clutch engagement.

5. Value Add: Installing a 5-speed transmission can increase the value of a classic car, making it more desirable to potential buyers.

Cons:

1. Cost: The cost of purchasing and installing a 5-speed transmission and clutch synchronizer can be expensive, especially for a vintage vehicle.

2. Complexity: Installing a 5-speed transmission is a complex process that requires specialized knowledge and tools. It is recommended to work with a professional mechanic.

3. Compatibility: Ensuring the 5-speed transmission is compatible with the specific make and model of your classic car can be a challenge.

4. Adaptation: Drivers may need to adapt to the new driving experience, as a 5-speed transmission requires more clutch control and shifting precision.

5. Maintenance: A 5-speed transmission requires more frequent maintenance than a standard automatic transmission, including regular oil changes and clutch replacement.

Conclusion:

In conclusion, buying a 1963-1973 Chevy GMC 5-speed Spicer transmission with a clutch synchronizer can offer improved performance, fuel efficiency, and customizability for classic car enthusiasts. However, it comes with a higher cost, complexity, potential compatibility issues, and the need for more frequent maintenance. Ultimately, the decision to purchase a 5-speed transmission for your classic vehicle depends on your budget, technical expertise, and desired driving experience. If you're willing to invest the time, money, and effort, it can be a rewarding upgrade.

Recommendation:

If you're considering purchasing a 1963-1973 Chevy GMC 5-speed Spicer transmission with a clutch synchronizer, I would recommend doing thorough research on the specific make and model of your classic car to ensure compatibility. Additionally, work with a professional mechanic to ensure proper installation and adjustment of the transmission and synchronizer. Finally, be prepared for the ongoing maintenance and potential additional costs associated with the upgrade.

Details:

I provided the last 3 pictures on here of more model fitment information from GM parts catalog. Please remember NOS does not mean perfection. It comes with the original old gm box and has never been installed or used before. The GM part number is 2423720 that was later changed to 706752.

Sometimes we just need some free time to get a chance respond and fix any issues, so please be patient. If you are unsure then please refer to those last 3 pictures before purchasing. This was discontinued from GM many years ago and extremely rare to find NOS. New Old Stock 1963-1973 Chevy GMC Spicer 5-Speed Transmission 4th-5th synchronizer clutch assembly.

Still in excellent condition. If you understand all of this and can agree to then please bid away with no worries.

part #: 2423720 price

  • $28.45

specifications othellodrivetrain:

  • for makes: Chevy, Gmc
  • for years: 1963-1973
  • brand: Chevy
  • mpn: 2423720
  • part type: Transmission Clutch Motor
  • ipn: 706752
  • vintage part: Yes
  • transmission models: 5052c 5652b 5756b 5252a 5052a 312764-x 310811x
  • keywords: 427 Engine 409 Engine Dump Truck Series 50 60 70 80 Dana

general othellodrivetrain:

  • condition: New
  • Car Truck Parts Accessories > Transmission Drivetrain > Other Transmission Drivetrain

returns othellodrivetrain:

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  • time: 30 Days
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  • service: Standard
  • class: Standard
  • cost: $14.99
  • transit: 4-7 Days
  • type: Fixed

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offer othellodrivetrain:

  • best offers: True
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  • options: Ship-to-home
  • availability: In Stock
  • started: April 11, 2025
  • quantity: 1

seller othellodrivetrain:

  • # reviews: 5795
  • rating: 100.0%
  • city: West Chester, Ohio
for makes: chevy, gmc, for years: 1963-1973, part type: transmission clutch motor, vintage part: yes, transmission models: 5052c 5652b 5756b 5252a 5052a 312764-x 310811x, keywords: 427 engine 409 engine dump truck series 50 60 70 80 dana,
category: auto parts > car truck parts accessories > transmission drivetrain, sku: 6277577621142603,

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