GM 3952659WB Muncie Transmission M-20

( Brand: Gm ), ( Manufacturer Part Number: 3952659WB ), ( Type: Tag ), ( Vintage Part: Yes ), ( Universal Fitment: No )

Review GM Chevrolet M-20 Muncie Transmission Tag Genuine fits CHEVELLE 1970

The GM 3952659wb Muncie M-20 4-speed transmission is a classic automotive component that was originally used in various applications, including the iconic 1970 Chevrolet Chevelle. This transmission is a manual, synchronized 4-speed design, which means it provides smooth and efficient gear changes for the driver.

The Muncie M-20 transmission is known for its robust construction and reliable performance. It features a cast iron housing that provides strength and durability, while the synchronizers help ensure smooth shifts between gears. The input and output shafts are also made of steel, adding to the overall sturdiness of the transmission.

This specific GM part number, 3952659wb, is suitable for use in a 1970 Chevrolet Chevelle with the M-20 transmission code. It is important to note that this transmission requires a bellhousing and clutch assembly that are specific to the Chevelle and the transmission model.

The Muncie M-20 transmission is a popular choice among classic car enthusiasts and hot rod builders due to its proven ability to handle high horsepower and torque levels. It is also easier to modify and rebuild compared to modern automatic transmissions. However, it does require regular maintenance and care to ensure optimal performance.

When installing this transmission, it is recommended to follow the manufacturer's instructions carefully and use the proper tools to ensure a successful installation. It is also important to use high-quality transmission fluid and filters to prolong the life of the transmission.

In summary, the GM 3952659wb Muncie M-20 4-speed transmission is a classic, reliable, and robust component that provides smooth and efficient gear changes. It is suitable for use in a 1970 Chevrolet Chevelle and is a popular choice among classic car enthusiasts and hot rod builders due to its ability to handle high horsepower and torque levels. However, it does require regular maintenance and care to ensure optimal performance.

Buying a GM 3952659WB 1970 Chevrolet Chevelle M-20 Muncie transmission involves weighing several factors to determine if it's the right choice for your needs and budget. Here are some pros and cons to consider:

1. Authenticity: This transmission is an original Muncie M-20 unit, which adds to the value and authenticity of your classic Chevelle.

2. Performance: The Muncie M-20 transmission is known for its robustness and smooth operation. It provides excellent power delivery and handling, making it a popular choice among classic muscle car enthusiasts.

3. Availability: Since the GM 3952659WB transmission is a widely used and well-documented model, it's relatively easy to find replacement parts and resources for repair and maintenance.

4. Affordability: Compared to newer transmissions, the price of a used Muncie M-20 transmission is generally lower, which can be a significant advantage for those on a budget.

1. Wear and Tear: As a used transmission, it may come with some wear and tear, which could lead to future repair or replacement costs.

2. Compatibility: Ensure that the transmission is compatible with your specific Chevelle model and engine configuration.

3. Maintenance: Older transmissions like the Muncie M-20 require more frequent and intensive maintenance compared to modern units.

4. Rare Parts: Some parts for the Muncie M-20 transmission might be challenging to find, which could increase the overall cost of ownership.

The GM 3952659WB 1970 Chevrolet Chevelle M-20 Muncie transmission offers several benefits, including authenticity, performance, availability, and affordability. However, it also comes with some drawbacks, such as potential wear and tear, compatibility issues, increased maintenance requirements, and the challenge of sourcing rare parts.

If you value the authenticity and performance of an original Muncie M-20 transmission in your classic Chevelle, and you're willing to invest time and resources into its maintenance, then this transmission could be a suitable choice for you. However, if you prefer a more modern, low-maintenance transmission or are looking for a more budget-friendly option, you might want to consider alternatives. Ultimately, your decision should be based on your personal preferences, priorities, and budget.

Details:

1970 Chevrolet Chevelle M-20 Muncie Transmission Tag - # 3952659WB Genuine GM.

part #: 3952659wb prices

• $44.95-$150.00

specifications manutransmission:

• for models: Chevelle
• for makes: Chevrolet
• for years: 1970
• brand: Gm
• mpn: 3952659wb
• type: Tag
• vintage part: Yes
• universal fitment: No

general manutransmission:

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

returns manutransmission:

• policy: Returns Accepted
• time: 30 Days
• paid by: Seller

payments manutransmission:

• other
• wallet: Google-pay
• credit card: Discover

seller manutransmission:

• city: Waukesha, Wisconsin
• # reviews: 1638
• rating: 100.0%

offer manutransmission:

• sold: 0
• started: August 24, 2025
• options: Ship-to-home
• quantity: 1
• availability: In Stock

shipping manutransmission:

• transit: 4-9 Days
• class: Standard
• type: Fixed
• carrier: UPS
• cost: $0.00
• service: UPS Ground

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