1966 Dodge Dart Performance Transmissions

Keep Your 1966 Dodge Dart in Top Shape with Quality Performance Transmissions

Whether you’re repairing or upgrading your Performance Transmission, using high-quality parts is key to keeping your 1966 Dodge Dart looking sharp and performing at its best. At Advance Auto Parts we carry a wide selection of dependable options, including Performance Transmission Shift Kits and Performance Engine and Transmission Mounts. 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 Dodge Dart Performance Transmission at Advance Auto Parts is around $125.49, with a range that starts at $75.99 and goes up to $199.99. With 3 options in stock from 2 trusted brands, finding the right fit is easy. Popular picks like Transmission Mount, Transpak, and Shift Improver Kit start at just $75.99 and offer a great balance of form and function.

Explore Related Parts

While you’re upgrading or replacing your Performance Transmission, don’t forget to check out other key components like Performance Fuel Systems and Performance Oil Filters. At Advance Auto Parts, we’re here to help you keep your 1966 Dodge Dart in peak condition, inside and out.

Essential 1966 Dodge Dart Performance Transmissions

Energy Suspension – Performance Transmission Mount (Part No.5.1101G)

Performance Transmission Mount

from

$23.99
A true performance application component for cars, trucks, hot rod, for racing and competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Made from HYPER-Flex Polyurethane
  • Firm Enough for Huge Amounts of Horsepower/Torque
  • Soft Enough Not to Transmit Vibration
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Energy Suspension – Transmission Mount (Part No.5.1112R)

Transmission Mount

from

$75.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
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Energy Suspension – Motor Mount (Part No.5.1106G)

Motor Mount

from

$53.99
A true performance application component for cars, trucks, hot rods and racing/competition vehicles – yet designed to be also used for street vehicles. Soft-running enough to absorb vibrations for street use yet rugged for racing use. When required- a torque resistant safety interlock design is used that is comparable in strength to those too hard-running metal mounts. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal motor mounts. The popular early style mounts for General Motors vehicles are available in either zinc or chrome metal finishes. Made of Hyper-Flex performance polyurethane. Resistant to under vehicle fluids such as: oils, coolants, road contaminants, etc.

Product Features:
  • Gains Both Performance and Longevity
  • Will Handle Any and All Torque
  • Out Lasts Rubber
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B & M – Shift Improver Kit (Part No.10225)

Shift Improver Kit

from

$83.99
This B&M Shift Improver kit fits all 1971-1977 Chrysler, Dodge and Plymouth TF727 transmissions with 6 cyl and V8 engines, along with A-904 transmissions with V-8 engines. This kit recalibrates your automatic transmission for optimum performance, extended life by eliminating shift overlap and excess wear on clutches & bands due to slippage. You get two modes of performance to select from: Stage 1 Heavy Duty, or Stage 2 Street/Strip. Stage 1 gives firm positive shifts without loss of driver comfort for improved shifting performance in all street vehicles. Street/Strip is for high performance street use or for competitive events for the enthusiast who wants the hardest hitting, quickest possible shifts. All you need are basic tools, the included installation instructions and in the space of an afternoon you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions!

Product Features:
  • Eliminates Shift Overlap
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
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B & M – Shift Improver Kit (Part No.10226)

Shift Improver Kit

from

$83.99
This B&M Shift Improver kit fits all 1966-1970 Chrysler, Dodge and Plymouth TF727 transmissions with 6 cyl and V8 engines, along with 1966-1977 A-904 transmissions with 6 cyl engines and 1968-1970 A-904 transmissions with V8 engines. This kit recalibrates your automatic transmission for optimum performance, extended life by eliminating shift overlap and excess wear on clutches & bands due to slippage. You get two modes of performance to select from: Stage 1 Heavy Duty, or Stage 2 Street/Strip. Stage 1 gives firm positive shifts without loss of driver comfort for improved shifting performance in all street vehicles. Street/Strip is for high performance street use or for competitive events for the enthusiast who wants the hardest hitting, quickest possible shifts. All you need are basic tools, the included installation instructions and in the space of an afternoon you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions!

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
See More

B & M – Transpak (Part No.10228)

Transpak

from

$199.99
Recalibrate your automatic transmission for optimum performance! Select the mode that best suits your application Improves transmission life Transmission removal not required APPLICATION: 1966 to 1977 Chrysler, Dodge, Plymouth TF A-727 and A-904 The next step up from the Shift Improver Kit is the Transpak. It has all the features in the Shift Improver Kit plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty For street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort. Normal automatic operation when in Drive. Stage 2. Hi-Performance Street For full performance street use. Essentially the same as Heavy Duty mode except shift is much quicker. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
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Most Popular Performance Transmission Shift Kits for 1966 Dodge Darts

Enhance your 1966 Dodge Dart with one of the 2 Performance Transmission Shift Kits we have in stock, starting at just $83.99.

B & M – Transpak (Part No.10228)

Transpak

from

$199.99
Recalibrate your automatic transmission for optimum performance! Select the mode that best suits your application Improves transmission life Transmission removal not required APPLICATION: 1966 to 1977 Chrysler, Dodge, Plymouth TF A-727 and A-904 The next step up from the Shift Improver Kit is the Transpak. It has all the features in the Shift Improver Kit plus it provides additional driver manual control (GM TH-400, 350, Ford C-6 and Chrysler Torqueflite only). Most stock automatic transmissions won’t downshift into low gear above 15 mph, and automatically upshift at a predetermined speed no matter what gear you’re in. With the Transpak, you can downshift at any speed, and you can hold the transmission in first gear to any speed that you want! This is an asset when you’ve got a modified engine, and you want additional RPMs, or you’re towing a trailer or driving heavy loads downhill. Stage 1. Heavy Duty For street rods, normal passenger vehicles or other heavy duty use. Firmer shift feel but not harsh. Improves transmission performance and life dramatically without loss of comfort. Normal automatic operation when in Drive. Stage 2. Hi-Performance Street For full performance street use. Essentially the same as Heavy Duty mode except shift is much quicker. Retain full automatic features and standard shift points with selector in Drive.

Product Features:
  • Recalibrate Auto. Transmission
  • Optimum Performance
  • Select Your App. Mode
  • Improves Transmission Life
  • Trans. Removal Not Required
  • Downshift At Any Speed
  • Great For Trailer Towing
  • For Heavy Loads Driving Downhill
See More

B & M – Shift Improver Kit (Part No.10226)

Shift Improver Kit

from

$83.99
This B&M Shift Improver kit fits all 1966-1970 Chrysler, Dodge and Plymouth TF727 transmissions with 6 cyl and V8 engines, along with 1966-1977 A-904 transmissions with 6 cyl engines and 1968-1970 A-904 transmissions with V8 engines. This kit recalibrates your automatic transmission for optimum performance, extended life by eliminating shift overlap and excess wear on clutches & bands due to slippage. You get two modes of performance to select from: Stage 1 Heavy Duty, or Stage 2 Street/Strip. Stage 1 gives firm positive shifts without loss of driver comfort for improved shifting performance in all street vehicles. Street/Strip is for high performance street use or for competitive events for the enthusiast who wants the hardest hitting, quickest possible shifts. All you need are basic tools, the included installation instructions and in the space of an afternoon you can turn your transmission into a B&M-tuned unit! Ask the thousands of satisfied customers that have installed one in their transmissions!

Product Features:
  • Provides Crisp Shifts
  • On Any Stock Automatic Transmission
  • Eliminates Soft/Sluggish Shift
  • Eliminates Shift Overlap
  • Eliminate Clutch and Band Wear
  • Improves Transmission Life
  • Transmission Removal Not Required
See More

Best-Selling 1966 Dodge Dart Performance Engine and Transmission Mount

Upgrade your Dart with our best-selling Performance Engine and Transmission Mount.

Energy Suspension – Transmission Mount (Part No.5.1112R)

Transmission Mount

from

$75.99
A true performance application component for cars, trucks, hot rods, racing/competition, yet popularly used for street vehicles when more horsepower is added. Soft running enough to absorb vibrations for street use yet rugged for racing use. Helps control torque on high performance vehicles. Maintains proper drive shaft angle to help prevent early wear and unexpected power train damage. Replaces the original, short lived and typically too-soft rubber mounts and outdates those hard-running metal transmission mounts. Resistant to under vehicle fluid oils, coolants and road contaminants. Made of Energy’s Hyper-Flex performance polyurethane and heavy duty hardware – for added durability.

Product Features:
  • Unique Safety Interlock Design
  • Impervious to Vehicle Oils and Chemicals
  • Strong Enough Too Handle High Performance
See More

FAQs for 1966 Dodge Dart Performance Transmissions

What are the best-selling Performance Transmissions for 1966 Dodge Darts?

Out of 3 Performance Transmissions that fit 1966 Dodge Darts, the following parts are the top sellers:

What’s the price range for 1966 Dodge Dart Performance Transmissions?

The prices of Performance Transmissions for the 1966 Dodge Dart range from $75.99 up to $199.99 for the most premium parts.

What is the average price of a Performance Transmission for a 1966 Dodge Dart?

The average price for Performance Transmissions for the 1966 Dodge Dart is $125.49. Keep in mind the variety of part types within our Performance Transmission category, where you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Performance Transmissions for other Dodge Dart model years?

Yes, we carry Performance Transmissions for 13 model years of Dodge Darts between 1962 and 1976. The following model years are the most popular for Performance Transmission purchases: 1976, 1975, 1974, 1973, 1972, 1971, 1970, 1969, and 1968.

What are the cheapest Performance Transmissions for my 1966 Dodge Dart?

The cheapest 1966 Dodge Dart Performance Transmissions we carry are:

Does Advance Auto Parts sell Performance Transmissions for any other 1966 Dodge models?

What types of Performance Transmissions do you sell for my 1966 Dodge Dart?

As of 11/2/25, these are some of the most in-demand types of Performance Transmissions for a 1966 Dodge Dart:

Can I get help with 1966 Dodge Dart Performance Transmission orders?

Contact our customer support team by chat or phone, through the help desk page, where you can find instant answers about Dodge Performance Transmissions and more.

What is your return policy for Dodge Dart Performance Transmissions?

Advance Auto Parts keeps returns simple. For new Dodge Dart Performance Transmissions and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.