1966 Chevrolet C20 Pickup Automatic Transmission Parts

Keep Your 1966 Chevrolet C20 Pickup in Top Shape with Quality Automatic Transmission Parts

Whether you’re repairing or upgrading your Automatic Transmission Part, using high-quality parts is key to keeping your 1966 Chevrolet C20 Pickup looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Transmission Bushings, Transmission Dipsticks, and Transmission Modulator Valves. Whether you’re replacing a damaged part or enhancing your truck’s style and protection, you’ll find exactly what you need to get the job done right.

Competitive Prices and Extensive Inventory

The average price for a 1966 Chevrolet C20 Pickup Automatic Transmission Part at Advance Auto Parts is around $50.60, with a range that starts at $7.29 and goes up to $139.99. With 12 options in stock from 6 trusted brands, finding the right fit is easy. Popular picks like Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions, AT OIL PUMP ORING, and Clutch Pilot Bushing start at just $7.29 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Automatic Transmission Part, don’t forget to check out other key components like Torque Converter and Related Products and Transmission Cooler and Parts. At Advance Auto Parts, we’re here to help you keep your 1966 Chevrolet C20 Pickup in peak condition, inside and out.

Essential 1966 Chevrolet C20 Pickup Automatic Transmission Parts

B & M – Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission (Part No.20248)

Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission

from

$125.99
This kit allows you to adjust the shift points of your transmission after it is installed in your vehicle. The Governor Recalibration Kit is very useful if you have a vehicle that is very light; has a low rear-end gear ratio.

Product Features:
  • Adjust Shift Points Of Transmission
  • Useful For Light Vehicles
  • For Low Rear End Gear Ratio
  • Or Useful If It Is Conversion
See More

ATP – AT CLUTCH PLATE (Part No.SC-26)

AT CLUTCH PLATE

from

$9.99
AT CLUTCH PLATE

ATP – AT CLUTCH PLATE (Part No.JC-57)

AT CLUTCH PLATE

from

$12.99
AT CLUTCH PLATE

ATP – AT CLUTCH PLATE (Part No.SC-30)

AT CLUTCH PLATE

from

$6.99
AT CLUTCH PLATE

ATP – AT OIL PUMP ORING (Part No.SO-21)

AT OIL PUMP ORING

from

$8.99
AT OIL PUMP ORING

Mr. Gasket – Automatic Transmission Dipstick With Tube (Part No.9690)

Automatic Transmission Dipstick With Tube

from

$48.99
Fits GM (General Motors) Powerglide transmissions with an aluminum case. Chrome plated dipstick that includes O-ring for a positive seal.

Product Features:
  • Chrome Plated
  • Includes O-Ring
See More

B & M – Aluminum Braided Dip Stick, Fits TH-350 Transmission (Part No.22165)

Aluminum Braided Dip Stick, Fits TH-350 Transmission

from

$124.99
What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:
  • Automatic Transmission Dip Stick
  • Mounts to bellhousing
  • Sold as a kit
  • Natural finish
  • Fits TH350 & TH350C
See More

Mr. Gasket – Chrome Automatic Transmission Dipstick & Tube – 27" Length (Part No.9764)

Chrome Automatic Transmission Dipstick & Tube - 27" Length

from

$33.99
Includes dipstick with chromed steel handle and chromed steel dipstick tube with mounting tab. 27 inch long.

Product Features:
  • Fits GM Th350 – Chevy Specific. Modify For Others
  • 27 In Length
  • Chrome Plated Steel
See More

B & M – Aluminum Braided Dip Stick, Fits TH-400 Transmission (Part No.22166)

Aluminum Braided Dip Stick, Fits TH-400 Transmission

from

$124.99
What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:
  • Automatic Transmission Dip Stick
See More

B & M – Shifter Accessory, Pro Stick Aluminum Cover (Part No.80717)

Shifter Accessory, Pro Stick Aluminum Cover

from

$139.99
Replacement aluminum cover for your B&M Pro Stick.

Product Features:
  • Pro Stick; Brushed Aluminum Cover
  • Aluminum Cover
  • Replacement Part
  • Sold individually
  • B&M quality
See More

Edelbrock – Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions (Part No.8026)

Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions

from

$19.99
Product Features:
  • Edelbrock Part # 8026 GM Transmission adapter is for use with 2004R, 700R4, 4L60 transmissions.
  • This kit relocates the pin position on an Edelbrock Carburetor when hooking up to a throttle valve style transmission (700R4, 2004R, 4L60).
  • The pin location is critical as the TV controls line pressure, shift points, shift firmness, and part throttle downshifts.
See More

Dorman – Clutch Pilot Bushing (Part No.690-014.1)

Clutch Pilot Bushing

from

$7.29
This clutch pilot bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this clutch pilot bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

ATP – AT FRT PUMP BUSHING (Part No.CB-4)

AT FRT PUMP BUSHING

from

$10.99
AT FRT PUMP BUSHING

Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-33)

Automatic Transmission Vacuum Modulator

from

$28.99
Fully adjustable vacuum modulator to maintain accurate shift points.

Product Features:
  • Meets or exceeds OE fit, form and function
See More

Carquest Premium – Automatic Transmission Modulator Valve (Part No.VMC1033)

Automatic Transmission Modulator Valve

from

$39.99
The transmission modulator valve is a vacuum operated mechanical device located on the transmission case. This valve will have a actuator rod extended into the transmission valve body inside the transmission which will control the flow of transmission fluid within the transmission to place the transmission in the most optimal forward gear selection.

Product Features:
  • Application matched component ensures the transmission gear position system can be returned to like new condition.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • This part will look and function just like the original unit being replaced.
See More

ATP – AT MODULATOR VALVE (Part No.JX-66)

AT MODULATOR VALVE

from

$17.99
AT MODULATOR VALVE

B & M – Modulator (Part No.20234)

Modulator

from

$48.99
B&M’s vacuum modulator is fully adjustable, this allows you to tailor your shift points to within a range of 2-4 mph. Comes preadjusted for normal shift points. For TH350 and TH400.

Product Features:
  • Fully Adjustable
  • Allows You To Tailor Shift Points
  • Comes Supplied Pre-Adjusted
See More

Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-28)

Automatic Transmission Vacuum Modulator

from

$33.99
Fully adjustable vacuum modulator to maintain accurate shift points.

Product Features:
  • Meets or exceeds OE fit, form and function
See More

Pro-King – Automatic Transmission Vacuum Modulator (Part No.MD-48)

Automatic Transmission Vacuum Modulator

from

$34.49
Fully adjustable vacuum modulator to maintain accurate shift points.

Product Features:
  • Meets or exceeds OE fit, form and function
See More

Most Popular Transmission Bushings for 1966 Chevrolet C20 Pickups

Enhance your 1966 Chevrolet C20 Pickup with one of the 2 Transmission Bushings we have in stock, starting at just $7.29.

Dorman – Clutch Pilot Bushing (Part No.690-014.1)

Clutch Pilot Bushing

from

$7.29
This clutch pilot bushing is designed to match the fit and function of the original part on specified vehicles. Made of quality materials, it is engineered for reliable performance.

Product Features:
  • Direct replacement – this clutch pilot bushing matches the fit and function of the factory part on specified years, makes and models
  • Ideal solution – this bushing is a reliable replacement for an original part that has failed due to fatigue
  • Durable construction – this part is made from quality materials to ensure reliable performance and long service life
  • Trustworthy quality – backed by team of product experts in the United States and more than a century of automotive experience
See More

ATP – AT FRT PUMP BUSHING (Part No.CB-4)

AT FRT PUMP BUSHING

from

$10.99
AT FRT PUMP BUSHING

Best-Selling 1966 Chevrolet C20 Pickup Transmission Dipsticks

Upgrade your C20 Pickup with one of our 2 best-selling Transmission Dipsticks.

Mr. Gasket – Automatic Transmission Dipstick With Tube (Part No.9690)

Automatic Transmission Dipstick With Tube

from

$48.99
Fits GM (General Motors) Powerglide transmissions with an aluminum case. Chrome plated dipstick that includes O-ring for a positive seal.

Product Features:
  • Chrome Plated
  • Includes O-Ring
See More

B & M – Aluminum Braided Dip Stick, Fits TH-400 Transmission (Part No.22166)

Aluminum Braided Dip Stick, Fits TH-400 Transmission

from

$124.99
What better way to check you oil level by using one of B&M’s transmission fluid dipsticks? The cap screws into the tube and is O-ring sealed, while the base of the tube has a sealing grommet where it goes into the transmission.

Product Features:
  • Automatic Transmission Dip Stick
See More

Top-Quality Transmission Modulator Valves for 1966 Chevrolet C20 Pickups

Choose a high-quality OEM or aftermarket Transmission Modulator Valve for Chevrolet C20 Pickups and enjoy top-notch performance from $17.99.

B & M – Modulator (Part No.20234)

Modulator

from

$48.99
B&M’s vacuum modulator is fully adjustable, this allows you to tailor your shift points to within a range of 2-4 mph. Comes preadjusted for normal shift points. For TH350 and TH400.

Product Features:
  • Fully Adjustable
  • Allows You To Tailor Shift Points
  • Comes Supplied Pre-Adjusted
See More

ATP – AT MODULATOR VALVE (Part No.JX-66)

AT MODULATOR VALVE

from

$17.99
AT MODULATOR VALVE

Carquest Premium – Automatic Transmission Modulator Valve (Part No.VMC1033)

Automatic Transmission Modulator Valve

from

$39.99
The transmission modulator valve is a vacuum operated mechanical device located on the transmission case. This valve will have a actuator rod extended into the transmission valve body inside the transmission which will control the flow of transmission fluid within the transmission to place the transmission in the most optimal forward gear selection.

Product Features:
  • Application matched component ensures the transmission gear position system can be returned to like new condition.
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • This part will look and function just like the original unit being replaced.
See More

Our Top Pick for a 1966 Chevrolet C20 Pickup Automatic Transmission Kickdown Cable Bracket

Invest in a durable Automatic Transmission Kickdown Cable Bracket for your 1966 Chevrolet, knowing you’re getting trusted brands and expert craftsmanship.

Edelbrock – Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions (Part No.8026)

Automatic Trans Cable Adapter #8026 for GM 2004R, 700R4, 4L60 Transmissions

from

$19.99
Product Features:
  • Edelbrock Part # 8026 GM Transmission adapter is for use with 2004R, 700R4, 4L60 transmissions.
  • This kit relocates the pin position on an Edelbrock Carburetor when hooking up to a throttle valve style transmission (700R4, 2004R, 4L60).
  • The pin location is critical as the TV controls line pressure, shift points, shift firmness, and part throttle downshifts.
See More

Our Automatic Transmission Governors for 1966 Chevrolet C20 Pickups

Make a smart move for your 1966 Chevrolet C20 Pickup with our Automatic Transmission Governor for $125.99.

B & M – Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission (Part No.20248)

Governor Recalibration Kit For TH-700R4, TH-400 and TH-350 Transmission

from

$125.99
This kit allows you to adjust the shift points of your transmission after it is installed in your vehicle. The Governor Recalibration Kit is very useful if you have a vehicle that is very light; has a low rear-end gear ratio.

Product Features:
  • Adjust Shift Points Of Transmission
  • Useful For Light Vehicles
  • For Low Rear End Gear Ratio
  • Or Useful If It Is Conversion
See More

FAQs for 1966 Chevrolet C20 Pickup Automatic Transmission Parts

What are the best-selling Automatic Transmission Parts for 1966 Chevrolet C20 Pickups?

Out of 12 Automatic Transmission Parts that fit 1966 Chevrolet C20 Pickups, the following parts are the top sellers:

What’s the price range for 1966 Chevrolet C20 Pickup Automatic Transmission Parts?

The prices of Automatic Transmission Parts for the 1966 Chevrolet C20 Pickup range from $7.29 up to $139.99 for the most premium parts.

What is the average price of an Automatic Transmission Part for a 1966 Chevrolet C20 Pickup?

The average price for Automatic Transmission Parts for the 1966 Chevrolet C20 Pickup is $50.60. Keep in mind the variety of part types within our Automatic Transmission Part category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Automatic Transmission Parts for other Chevrolet C20 Pickup model years?

Yes, we carry Automatic Transmission Parts for 12 model years of Chevrolet C20 Pickups between 1961 and 1974. The following model years are the most popular for Automatic Transmission Part purchases: 1974, 1973, 1972, 1971, 1970, 1969, 1968, 1967, and 1965.

What are the cheapest Automatic Transmission Parts for my 1966 Chevrolet C20 Pickup?

The cheapest 1966 Chevrolet C20 Pickup Automatic Transmission Parts we carry are:

Does Advance Auto Parts sell Automatic Transmission Parts for any other 1966 Chevrolet models?

What are the top-rated Automatic Transmission Parts that fit the 1966 Chevrolet C20 Pickup?

The one 1966 Chevrolet C20 Pickup Automatic Transmission Part we have in stock is the Clutch Pilot Bushing. It costs $7.29.

What types of Automatic Transmission Parts do you sell for my 1966 Chevrolet C20 Pickup?

As of 11/2/25, these are some of the most in-demand types of Automatic Transmission Parts for a 1966 Chevrolet C20 Pickup:

Can I get help with 1966 Chevrolet C20 Pickup Automatic Transmission Part orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Chevrolet Automatic Transmission Parts and more.

What is your return policy for Chevrolet C20 Pickup Automatic Transmission Parts?

Advance Auto Parts keeps returns simple. For new Chevrolet C20 Pickup Automatic Transmission Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.