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January 2023

10 Tips on Optimizing Your Torqueflite 727 Transmission

10 Tips on Optimizing Your Torqueflite 727 Transmission - Gearstar

The Torqueflite 727 transmission is a well-known and highly regarded Mopar transmission system used in various vehicles. However, like all transmissions, it requires proper maintenance and care to perform at its best. This blog will discuss ten expert tips for optimizing your Torqueflite 727 transmission and ensuring that it runs smoothly and efficiently for years to come.

1. Regular Maintenance

Your engine also plays a crucial role in maximizing the performance of your Torqueflite 727 transmission. First and foremost, regular engine maintenance, such as oil changes, tune-ups, and air filter replacements, can help ensure your engine runs smoothly and efficiently. If your engine is not running correctly, it can stress your transmission more quickly and cause it to wear out. Regular engine maintenance can help to keep your engine running smoothly and reduce the load on your transmission.

Moreover, maintaining proper tire inflation and alignment is crucial for maximizing the performance of your Torqueflite 727 transmission. Properly inflated tires can improve fuel efficiency, and a well-aligned tire reduces the stress on your transmission and other drive components. Additionally, avoiding overloading your vehicle and exceeding the recommended towing capacity is advisable, as excess weight can strain your transmission and lead to quicker wear and damage. It is also important to drive smoothly and avoid sudden stops or hard acceleration, which can stress your transmission more. By following these guidelines, you can help to ensure the optimal performance and longevity of your Torqueflite 727 transmission.

2. High-Quality Transmission Fluid and Maintenance

Another critical factor in optimizing your Torqueflite 727 transmission is using a high-quality transmission fluid specifically designed for your vehicle. High-quality transmission fluid will help to reduce wear and tear on your transmission and ensure that it runs smoothly and efficiently. It’s also important to regularly check the level and condition of your transmission fluid to ensure that it is at the correct level and free of contaminants.

Along with the quality of the transmission fluid, one of the most critical aspects of maximizing the performance of your Torqueflite 727 transmission is proper transmission fluid maintenance. The transmission fluid is responsible for lubricating your transmission and reducing friction between the moving parts. Over time, the fluid can become contaminated or break down, which can cause your transmission to shift poorly or even fail. Regular transmission fluid changes, high-quality fluid, and monitoring fluid levels can help keep your transmission running smoothly and reduce the risk of failure.

3. Avoid Overloading

Overloading your vehicle can cause excessive wear and tear on your transmission, leading to various issues, including slipping and hard shifting. It’s essential to be mindful of the weight of your vehicle and the load you are carrying to prevent unnecessary stress on your transmission. It’s important to keep the weight of your vehicle within the recommended limit to prevent undue stress on your Torqueflite 727 transmission.

4. Transmission Cooler

To regulate the temperature of your Torqueflite 727 transmission and prevent overheating, installing a transmission cooler is a good idea. A transmission cooler works by dissipating heat from the transmission fluid, which helps to prevent damage caused by overheating. Choosing the correct size and type of transmission cooler for your vehicle is vital to ensure that it provides optimal cooling and protection for your transmission.

5. Correct Shift Points

To ensure that your Torqueflite 727 transmission performs at its best, it’s important to set the correct shift points. This involves adjusting the points at which your transmission shifts between gears to ensure that it shifts smoothly and efficiently. Incorrect shift points can cause hard shifts, slipping, and other issues that can impact the performance of your transmission. It’s important to have a professional transmission specialist set the correct shift points for your vehicle.

6. Driveshaft Balance

An unbalanced driveshaft can cause vibrations, leading to wear and tear on the transmission components and other parts, such as the u-joints and bearings. These vibrations can also lead to increased noise and decreased performance. Balancing the driveshaft helps distribute the weight evenly, reducing vibrations and improving the transmission’s overall performance. This results in smoother operation, longer component life, and better overall performance of the vehicle.

7. Shift Kit

Installing a shift kit can help to improve shift quality and reduce transmission slippage in your Torqueflite 727 transmission. Shift kits work by adjusting the pressure and timing of the shifts, which can improve overall performance and reduce wear and tear. It’s important to choose the correct shift kit for your vehicle and have it installed by a professional transmission specialist.

8. Torque Converter Selection

The torque converter is a crucial component in your Torqueflite 727 transmission, and choosing the right one is essential for optimizing performance and longevity. A high-quality torque converter can help to improve shift quality, reduce slippage, and increase efficiency. Choosing a torque converter specifically designed for your vehicle and transmission type is important to ensure that it provides the best performance and protection.

9. Proper Driving Techniques

Your driving habits can also significantly impact the performance and longevity of your Torqueflite 727 transmission. Proper driving techniques such as avoiding sudden acceleration, using smooth gear changes, and not over-revving the engine can help to reduce stress on your transmission and keep it running smoothly. Be mindful of your driving habits and make any necessary adjustments to prevent excessive wear and tear on your transmission.

10. Regular Inspections

To keep your Torqueflite 727 transmission functioning optimally, it is crucial to have periodic assessments performed by an experienced professional. Regular inspections make it possible to detect and address any potential issues in their early stages, thus avoiding more significant problems in the future. During these assessments, the transmission specialist will carefully examine the transmission for any signs of wear or damage and promptly make any required repairs or modifications to maintain its smooth operation.


By following these ten tips, you can help to optimize the performance and longevity of your Torqueflite 727 transmission. Firstly, regular maintenance and the use of high-quality transmission fluid are essential. Secondly, practicing proper driving techniques and undergoing regular inspections can also contribute to its smooth operation. Moreover, if you have any concerns or questions about your Torqueflite 727 transmission, it is crucial to seek expert advice and guidance from a professional transmission specialist. In conclusion, implementing these tips can help ensure that your transmission runs smoothly and efficiently for years to come.

What Are the Different Types of Transmission Fluids?

What Are the Different Types of Transmission Fluids - Gearstar

Many fluids run through your vehicle, powering it in their little way to ensure you enjoy or have a smooth driving experience. One of the most crucial of these fluids is the transmission fluid. Unfortunately, only a handful of car owners even know the primary role transmission fluids play and don’t even know that it must be changed from time to time.

This article highlights some vital information you need to know about the primary function of your car engine and the difference between manual, automatic, and continuously variable transmission fluids.

What is the Function of Transmission Fluids?

Before mentioning the different types of transmission fluids, it is essential to address the function of the transmission fluid in your vehicle.

The primary function of the transmission fluid is to lubricate every metal component and bearing within a vehicle’s manual gearbox. The fluid prevents these components from wearing out quickly as they move and friction occurs.

The transmission fluid in an automatic transmission also fulfills the same function. However, it also provides enough hydraulic pressure and friction to make the internal components function optimally. Transmission fluids also help the transmission cool in both manual and automatic versions.

Shifting gears in manual and automatic transmissions can be quite strenuous for a vehicle. But thanks to the transmission fluid, vehicles can shift effortlessly without wearing down their components.

Manual transmission fluid or oil has existed since the first automobiles were manufactured and were available in some form or shape. However, automatic transmissions only came into existence in the ’40s and played crucial roles in the overall functioning of vehicles.

The Types of Transmission Fluids You Should Know

There are generally two types of transmission fluids: manual transmission fluids and automatic transmission fluids. However, a third transmission fluid – i.e., the continuously variable transmission fluid – just joined the fray, thanks to the manufacture of high-tech automobiles in recent years.

Therefore, let’s look at each of these transmission fluids:


This is also sometimes known as manual transmission lube or oil and was common in older automobiles. These old vehicles are equipped with manual transmissions.

Automatic vehicles can never use manual transmission fluids – heavier/thicker 75W to 140W fluid with more pungent smells. However, later models of manual transmissions can utilize automatic fluids in their manual transmission.

The thick manual transmission fluids often made it challenging for car owners to smoothly shift in and out of gear, especially during winter. This is the primary reason many transmission systems use automatic transmission fluid.


These are made for vehicles that use automatic transmissions. However, a few modern cars with manual transmissions also use this fluid.

Automatic fluids help with the following functions:

  • Brake band friction
  • Gear lubrication
  • Clutch friction operation
  • Transmission cooling
  • Valve body operation
  • Torque converter operation

Automatic fluids are usually thinner – i.e., not as thick as manual transmission fluids. They are also colored, usually red or green. The color is there for two reasons; the first is to make it very easy to spot any leaks, and the second is to avoid using the wrong type of transmission fluid for your vehicle.

Some automatic fluids are available in purple, green/blue, or even amber depending on specific manufacturers. These colors also make it easy to differentiate transmission fluids from motor oil and other fluids running through vehicles.

Continuously Variable

More modern automobiles utilizing highly advanced technologies are hitting the market almost daily. These tech-advanced vehicles use continuously variable transmission fluid, or CVT fluid, in their transmissions.

The continuously variable transmission fluid is a highly advanced substance designed to work efficiently and effectively only in advanced SUVs, trucks, and cars. Therefore, using the wrong type of transmission fluid for this vehicle will result in severe problems. This implies that you should never use regular automatic transmission fluid when using the continuously variable transmission fluid or vice versa.

Your advanced automobile may run when the wrong transmission fluid is put in. But, unfortunately, you may not even notice anything has gone wrong until much later when the issues develop and rear an ugly head at the most inconvenient times.

Therefore, be careful when purchasing transmission fluids and filling up your engine.

Which Transmission Fluids Should I Use for My Vehicle?

Now that you know the significantly different types of transmission fluids, the next step is to determine which one is ideal for your vehicle.

Whether your vehicle comes with an automatic or manual transmission does not matter. Ensure the correct type of transmission fluid for your vehicle is used. Using the wrong type of transmission fluid for your vehicle will poorly affect your transmission.

Therefore, checking out your owner’s manual is the best way to find yours. The type of transmission fluid you should use for your vehicle should be outlined in black and white.

However, if you have misplaced your owner’s manual online in search of its digital version.

How Often Should I Change My Vehicle’s Fluids?

Most people know the importance of changing the motor oil, but only a few bother about changing their transmission fluid.

But the truth is that changing your transmission fluid should also be part of your vehicle maintenance procedures. Over time, manual and automatic transmission fluids break down and contaminate debris.

Although transmission fluids don’t frequently change as much as motor oils, keeping an eye on them and checking them from time to time is crucial.

If the level of your transmission fluid is low or it starts breaking down, you will notice a significant decrease in the overall performance of your engine whenever you shift or engage gears. In addition, if you continue driving your vehicle in this condition, you will increase the risk of severe damage to internal gears and components as they grind against one another due to insufficient lubrication.

This is why some car makers recommend changing your vehicle’s transmission fluid every 30,000 to 60,000 miles. Find out the specifications or recommendations for your vehicle’s model.


Knowing the different types of fluids available is highly crucial. This prevents improper use, endangering all the components that make the gear system work.

Therefore, ensure you only use the correct transmission fluid for your vehicle.

Transmission Control Module: Buyer’s Guide for Classic Cars

Transmission Control Module: Buyer's Guide for Classic Cars - Gearstar

An advanced, late-model electronic transmission and transmission control module can enhance the performance of classic cars. These controllers offer precise shift point revolutions per minute and can adjust line pressure for shift firmness. They are not a universal remedy for weak transmissions but can enhance the automotive experience when the electronic automatic transmission is functioning properly. Some solutions provide dyno mode and block the torque converter clutch to prevent slippage.

The Products Currently on the Market

The market currently offers a variety of high-performance transmission control modules from major brands with unique features and solutions. Selection depends on the specific functions required, with some requiring laptop tuning for advanced users and others not. Some helpful categories for selection include LED diagnostics, A/B Shift, and Speedo Output. Simplicity in design is a desirable feature, with some controllers using dials instead of digital inputs and others being smaller in size. Newer control products offer upgraded features and improved performance, such as the TCU 2.0 system with diagnostic LED indicators and robust software.

Edelbrock’s Autonomous Controller

Mentioning Edelbrock’s autonomous controller that can easily be controlled using a wireless Android tablet as the input component instead of a device attached to a cable is not out of line. The stand-alone trans controller makes use of practically the same software and circuitry for its popular ProFlo-4 EFI system. The trans controller promises to deliver the same incredibly sound engineering that Edelbrock’s ProFlo-4 EFI system offers.

The HGM Electronics Compu-Shift

According to experts, the HGM Electronics Compu-Shift is one of the most reliable and durable systems to consider. In a recent improvement move to sharpen its deliverables, HGM engineers completely re-designed its path-breaking CompuShift II controller by placing the electronics in a more compact package called the HGM Sport.

The HGM also brought down the total cost of the entire system by making use of Bluetooth technology to load a free program into iPad or iPhone devices and Android tablets and phones. As a result, your tablet or smartphone becomes the handheld screen when using HGM Sport.

This enables you to keep track of the system’s current state and make necessary changes to its settings as desired. This frees you from the standard expenditure of buying and using a separate monitor and significantly reduces the cost of the entire system.

Transmissions and Suitable Products They Work With

Most TCMs only function on a carbureted engine as long as a throttle position sensor (TPS) is attached to the carburetor. HGM sells Acculink, an excellent conversion kit that helps install a standard 3-pin GM sensor on various carburetors from Holley, Edelbrock, or Q-jet. Holley also sells a great conversion kit, though it is only suitable for electric choke-equipped 4160.4150 carburetors that come with an electrical throttle.

The likelihood that few owners of high-performance-oriented vehicles may want to integrate an electronic fuel injection system with an electronically-operated transmission is high. For instance, FiTech integrates transmission control into specific EFI systems, e.g., the Ultimate LS1/LS2/LS6 500hp system from FiTech.

Some owners may prefer an electronic fuel injection system to run their engines with an independent mechanism for the trans. You may consider systems that easily communicate between the independent controllers via a controller area network (CAN) bus system. CAN is a unique method for digital systems to transfer data quickly, including rpm, TPS, temperatures, and MAP. An example is TCI’s TCU 2.0, which efficiently transfers data through a CAN bus system with a FAST EFI system.

Transmissions control modules that require a laptop

The following are the TCMs that can be accessed via a laptop:

  • FiTech Go Shift
  • MicroSquirt
  • Chevrolet Performance
  • PCS TCM 2800

Transmission Control Module That Do Not Require a Laptop

These TCMS do not require the use of a laptop to access them:

  • Edelbrock TC
  • Painless Perfect Torc
  • HGM CompuShift Sport
  • PCS SimpleShift


With everything considered, transmission controllers will certainly find popularity among speedsters who always want to utilize the full potential of the transmissions installed in their high-performance-oriented vehicles.

How Transmission Control Module Reset Works

How Transmission Control Module Reset Works - Gearstar Performance

If you own a vehicle powered by an automatic transmission, it would certainly have a transmission control module or TCM. This is a vital component the transmission utilizes when choosing the ideal gear at any particular time. This article covers what a transmission control module is and the signs of a bad TCM. You will also discover the most efficient way to transmission control module reset.

What is a Transmission Control Module?

A transmission control module (TCM) is a mechanical device that directly controls the power and speed of a vehicle’s transmission. The primary purpose of a TCM is to readily maximize or boost efficiency while enhancing the strength of the wheels. Newer vehicles come with TCMs built into their computers. However, transmission control modules are not infallible and can eventually go bad. When this happens, they cause unreliable and erratic shifting processes and may showcase severe check engine errors.

How to Tell When Your Transmission Control Module Has Gone Bad

When the transmission control module of your vehicle goes bad, you will perceive several signs. You should be aware of these signs because they are crucial. Ignoring them will cause the transmission control module to damage other vital components of your vehicle, resulting in avoidable, costly repairs. Therefore, here are some of the signs you will experience when your transmission control module goes bad: 

  • Delayed Shifting

Poor shifting capabilities or delayed shifts are common problems with automatic transmission. Therefore, if you find yourself downshifting when you are not at high speed or experience rough and jerky starts every time, something could be wrong with the transmission. Changing the transmission control module is the easiest way of dealing with this problem.

  • Poor Fuel Economy

Vehicles powered by an automatic transmission with automatic gearboxes require a lot of petrol in order to run efficiently and smoothly. One of the best ways to check if you have a faulty transmission is by looking at your vehicle’s fuel economy. If it decreases, it simply implies your transmission is no longer working efficiently. You should get your vehicle to an auto repair shop to check for whatever is wrong with the gear system.

  • Difficulty Changing into Higher Gears

The automatic gearbox usually bears the load through 4 different gears whenever you shift. Therefore, the transmission control module is definitely the culprit if you suddenly find it somewhat challenging to shift into a higher gear. You may need to replace the transmission control module and clear every error made in order to restore your vehicle’s smooth operation.

  • Stuck in the Same Gear

This situation can occur when you cannot shift into a particular gear or only keeps going into one gear instead of shifting to another one. This can be disturbing, especially if you’re traveling long distances and need to change your speed from time to time. Therefore, when your vehicle no longer wants to pick up any gears, your transmission control module could be faulty. These common signs show that your transmission control module has gone bad and may require a replacement or resetting. Causes of Transmission Control Module Failure. Your transmission control module can fail for several reasons.

Here are some of the causes of TCM failure:

  • Faulty Wiring

Faulty wiring of TCM circuit boards is quite common in many vehicles powered by automatic transmissions. The wiring may get loose in the connections already made and get worse as it interferes with the smooth functioning of the transmission control module. If left unattended, it can cause the TCM to break down unceremoniously and may require replacement.

  • Heat

When engines operate for a while, they tend to produce heat. However, if the heat is intense, it can cause severe meltdown of some electronic components within the transmission control module circuit board. When this meltdown occurs, the TCM can suddenly fail and require a replacement as soon as possible.

  • Defective solenoid

You will notice a faulty solenoid within the TCM circuit board when you experience abrupt acceleration during driving, irregular starting gear shifts, flat spots, etc. If you find any loose or faulty connection in the solenoid or its components, it will severely harm the TCM, causing abrupt failure. This is one of the primary reasons transmission control modules go bad and require resetting or replacement, depending on the extent of the damage.

  • Voltage Goes into the Circuit Board of the Transmission Control Module

The voltage going unexpectedly into the circuit board of the TCM can cause sudden failure. For instance, the transmission travels up and down at a soft start when starting your vehicle. This results from voltage going to the ICs of the transmission control module, resulting in a burnt-out relay.

Mechanical Consequences

At times, the TCM receives no voltage; when this happens, the component won’t start working. The TCM circuit board can fail as a result. However, heavy vibrations can crush the components of a transmission control module.

How to Reset Your Transmission Control Module

If you want to know how to reset the transmission control module of your vehicle, follow these simple steps one after the other carefully:

  1. Switch off your vehicle’s air conditioner and move the shifter into the ‘Park’ position.
  2. Turn off your vehicle’s ignition and wait patiently for 5 to 10 seconds.
  3. Start the engine and allow it to idle for several seconds
  4. Switch off the ignition and wait patiently for another 30 to 40 seconds.
  5. Repeat these steps 2 to 3 times in order to reset your vehicle’s transmission control module.

This is how to reset your vehicle’s transmission control module efficiently. However, if the TCM is still not functioning properly, you may need to take your vehicle to the nearest auto repair shop for proper diagnostics.


The transmission control module is one of the most crucial components in a vehicle with an automatic transmission. Unfortunately, the TCM can get damaged over time and may require a reset to get it into excellent operating condition. Hopefully, this article teaches you how to reset your vehicle’s transmission control module.