C7M31N Powerglide Automatic Transmission

( Brand: General Motors ), ( Manufacturer Part Number: C7M31N ), ( Part Type: Aluminum Transmission Motor ), ( Vintage Part: Yes )

Review GENERAL MOTORS Aluminum Powerglide Automatic Transmission fits IMPALA CAMARO CHEVELLE 1966

The General Motors C7M31N automatic transmission, specifically the 1966 version, is a classic piece of automotive history that was widely used in various models from the Chevrolet Impala, Camaro, and Chevelle. This transmission was designed to provide smooth and reliable shifting for these iconic vehicles, making them a joy to drive, even in heavy traffic or on long highway trips.

The C7M31N is a 3-speed Powerglide automatic transmission, which means it has three forward gears and no reverse gear. This design was popular in the 1960s due to its simplicity and cost-effectiveness. The Powerglide transmission uses a hydraulic torque converter and a planetary gear set to shift gears, providing a seamless transition between speeds.

The C7M31N transmission is equipped with a torque converter that can handle a maximum torque of 325 lb-ft, making it suitable for mid-sized engines. The transmission case is made of heavy-duty cast iron, ensuring durability and long-lasting performance. The transmission also features a synchronizer system for smooth gear shifts, reducing wear and tear on the gears and ensuring a silent operation.

The C7M31N transmission is easy to install and maintain, with accessible service points and easy-to-follow maintenance instructions. The transmission fluid is typically changed every 30,000-50,000 miles, depending on driving conditions and vehicle usage. With proper maintenance, the C7M31N transmission can provide reliable performance for many years.

In summary, the General Motors C7M31N 1966 Powerglide automatic transmission is a classic piece of automotive history that provides smooth and reliable shifting for mid-sized engines. Its durable design and easy maintenance make it a popular choice for restorers and enthusiasts of classic Chevrolet, Camaro, and Chevelle models.

1. Reliability: Powerglide transmissions were widely used in the 1960s and 1970s, and many have proven to be reliable over the years.

2. Parts Availability: Due to their widespread use, parts for Powerglide transmissions are generally easy to find and not excessively expensive.

3. Simple Design: The Powerglide's simple design makes it easy to diagnose and repair, even for those without extensive mechanical knowledge.

4. Affordability: Compared to newer transmissions, Powerglide transmissions can be a more affordable option, especially for classic car enthusiasts on a budget.

1. Shift Quality: Powerglide transmissions are known for their smooth but slow shifts, which may not be as desirable for those who prefer a more responsive driving experience.

2. Fuel Efficiency: Powerglide transmissions are not as fuel-efficient as modern transmissions, which can be a concern for those who drive their classic cars frequently.

3. Limited Gear Ratios: The Powerglide only has two forward gears, which may limit the performance of high-performance classic cars.

4. Repair Costs: While parts are generally affordable, repairing a Powerglide transmission can be costly, especially if a major component fails.

Conclusion: If you are looking for a reliable, affordable, and easy-to-maintain transmission for your classic car, a 1966 General C7M31N Powerglide Automatic Transmission Impala, Camaro, or Chevelle may be a good option. However, if you value performance or fuel efficiency, you may want to consider a different transmission option. Ultimately, the choice depends on your personal preferences and priorities as a classic car owner.

Details:

We mainly work with old car parts, but we get all sorts of odds and ends in stock from different sources. The Tail housing has the part number 3863192. Never have seen it running. Warning: not for human consumption.

Buy More and Save. 1966 Aluminum Powerglide Automatic Transmission Impala Camaro Chevelle: condition: used, spins but unknown condition. We combine shipping on multiple orders to save you cash. The pump also has the Part number 3789012 and GM10.

This is a 1967 aluminum powerglide transmission.

part #: c7m31n prices

• $129.00-$494.95

specifications autotransmissionsgo:

• for models: Impala, Camaro, Chevelle
• for years: 1966
• brand: General Motors
• mpn: C7m31n
• part type: Aluminum Transmission Motor
• vintage part: Yes

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

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• best offers: True
• options: Ship-to-home
• started: January 10, 2025
• quantity: 1
• sold: 0
• availability: In Stock

general autotransmissionsgo:

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

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• # reviews: 5928
• rating: 98.4%
• city: Fort Wayne, Indiana

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