68rfe Transmission

Everything You Need to Know About the 68rfe Transmission: A Complete Guide

Welcome to our comprehensive guide on the 68rfe transmission, where we’ll dive deep into everything you need to know about this powerful piece of automotive technology. Whether you’re a gearhead looking to upgrade your current setup or simply curious about how transmissions work, you’ve come to the right place.

In this article, we’ll unravel the mysteries surrounding the 68rfe transmission and shed light on its history, technical specifications, and real-world applications. We’ll even compare it with its formidable counterpart, the Aisin transmission. So buckle up and get ready for an informative ride through the world of heavy-duty transmissions!

But before we jump into all that juicy information, let’s start by understanding what exactly the 68rfe transmission is and why it has garnered such popularity among truck enthusiasts worldwide. So without further ado, let’s rev those engines and shift gears into high gear!

Understanding the 68rfe Transmission

The 68rfe transmission is a crucial component of many Dodge/RAM vehicles, particularly those with the powerful 6.7L Cummins engine. But what exactly is it? Developed as an upgrade to its predecessor, the 48re transmission, the 68rfe offers improved performance and durability for heavy-duty applications.

With its robust design and advanced technology, this transmission can handle high torque loads and deliver smooth shifts under demanding conditions. It features six forward gears and one reverse gear, providing a wide range of ratios to optimize both acceleration and fuel efficiency.

The 68rfe transmission is designed to meet the needs of drivers who require reliable power delivery and towing capabilities without sacrificing comfort or drivability. Whether you’re hauling heavy loads or enjoying off-road adventures, understanding how this essential component works will help you appreciate its benefits in your Dodge/RAM vehicle.

What is the 68rfe Transmission?

The 68rfe transmission is a popular automatic transmission used in Dodge/RAM trucks with the 6.7L Cummins engine. It is known for its durability, smooth shifting, and impressive towing capabilities. This transmission features six speeds and a robust design to handle the demands of heavy-duty applications.

Designed specifically for trucks, the 68rfe transmission offers improved torque capacity and enhanced cooling capabilities compared to previous models. Its advanced electronic controls ensure precise shifting and optimal performance in various driving conditions.

With its solid construction and reliable performance, the 68rfe transmission has become a trusted choice for truck owners looking for a dependable and efficient powertrain solution. Whether you’re hauling heavy loads or cruising on the highway, this transmission delivers exceptional power delivery and overall driving experience.

History and Development

The history and development of the 68rfe transmission is a fascinating tale that showcases the evolution of automotive technology. This transmission was first introduced by Chrysler in 2007, specifically designed for heavy-duty pickup trucks equipped with a Cummins diesel engine. Over the years, it has undergone several upgrades and refinements to enhance its performance and reliability.

Initially, the 68rfe transmission faced some challenges with durability and shifting smoothness. However, through continuous research and development, engineers were able to address these issues and make significant improvements. They fine-tuned various components such as clutches, valve bodies, torque converters, and control modules to optimize efficiency and overall functionality. As a result of their efforts, the 68rfe transmission became more robust, providing better power delivery while ensuring smoother gear shifts for an enhanced driving experience.

Technical Specifications

The technical specifications of the 68rfe transmission are what set it apart from other transmissions on the market. This six-speed automatic transmission is specifically designed for heavy-duty applications, making it ideal for trucks and vehicles that require extra power and durability.

With a maximum torque rating of up to 800 lb-ft, the 68rfe can handle high levels of torque without compromising performance. It also features a larger input shaft and improved clutch material, ensuring smoother shifts and increased longevity. Additionally, the transmission has a low first gear ratio for enhanced towing capabilities and optimal acceleration.

In terms of control, the 68rfe boasts advanced electronic controls that allow for seamless shifting and adaptive learning capabilities. These controls continually monitor driving conditions to make adjustments in real-time, resulting in improved efficiency and overall performance. With its impressive technical specifications, it’s no wonder why many truck owners choose the reliable 68rfe transmission for their heavy-duty needs.

68rfe vs Aisin Transmission

When it comes to choosing the right transmission for your vehicle, two options stand out: the 68rfe and Aisin transmissions. Both of these transmissions have their unique features and advantages, making them popular choices among truck owners.

The 68rfe transmission is known for its durability and reliability. It is a six-speed automatic transmission that can handle heavy-duty towing and hauling with ease. On the other hand, the Aisin transmission is a seven-speed automatic transmission that offers smoother shifting and enhanced fuel efficiency. Each transmission has its pros and cons, so it’s important to consider your specific needs before making a decision.

In terms of real-world application, both transmissions perform admirably in different scenarios. The 68rfe excels in rugged off-road situations or when towing heavy loads, while the Aisin shines on long highway drives where optimal fuel efficiency is desired. Your choice between these two transmissions will depend on your driving habits and preferences

Comparison of Key Features

When comparing the key features of the 68rfe transmission and the Aisin transmission, there are a few important factors to consider. First, let’s talk about power handling capabilities. The 68rfe is known for its robust design and ability to handle high torque outputs, making it an excellent choice for towing or hauling heavy loads. On the other hand, the Aisin transmission is designed with heavy-duty applications in mind and offers even higher torque capacity.

In terms of shift quality and smoothness, both transmissions offer excellent performance. However, some drivers prefer the slightly crisper shifts of the 68rfe transmission, while others appreciate the smoother shifts provided by the Aisin. It comes down to personal preference and intended use when deciding which transmission is right for you.

Pros and Cons of Each Transmission

When it comes to comparing the 68rfe and Aisin transmissions, there are pros and cons to consider for each.

On one hand, the 68rfe transmission offers a lower cost option that still delivers solid performance. It can handle moderate power upgrades and is known for its durability. However, it may not be as capable of handling extremely high horsepower applications.

On the other hand, the Aisin transmission is renowned for its robustness and ability to handle heavy-duty towing and hauling. It provides smoother shifts and improved fuel efficiency compared to the 68rfe. However, this added capability comes at a higher price point.

Choosing between these two transmissions depends on your specific needs and budget constraints.

Real-World Application

One of the key aspects to consider when evaluating the 68rfe transmission is its real-world application. This transmission has proven itself as a reliable and efficient option for various vehicles, particularly in heavy-duty applications. Whether you’re hauling a heavy load or towing a trailer, the 68rfe transmission offers smooth shifting and impressive torque capacity.

In addition, it provides excellent fuel efficiency, making it ideal for long-distance driving or commercial use. Its strong construction and durability ensure that it can handle demanding conditions without compromising performance. With its ability to adapt to different driving situations seamlessly, the 68rfe transmission is a popular choice among truck owners looking for reliability and power on the road.

Vehicles that Use the 68rfe Transmission

The 68rfe transmission is commonly found in Dodge and RAM trucks equipped with the 6.7L Cummins engine, produced between 2007.5 and 2018. This robust transmission has proven to be a popular choice among truck enthusiasts due to its durability and towing capabilities.

Owners of heavy-duty trucks rely on the 68rfe transmission for its ability to handle high torque loads, making it ideal for hauling heavy trailers or tackling challenging terrains. Whether you’re using your truck for work or play, having a reliable transmission like the 68rfe ensures that you can get the job done without any hiccups along the way.

Dodge/RAM 6.7L Cummins (2007.5-2018)

The Dodge/RAM 6.7L Cummins (2007.5-2018) is one of the vehicles that uses the 68rfe transmission. This powerful combination has made it a favorite among truck enthusiasts and those in need of heavy-duty towing capabilities.

With its robust design and advanced technology, this transmission offers smooth shifting and excellent durability. It can handle the high torque output of the Cummins engine, making it an ideal choice for those who require maximum towing capacity.

If you’re looking for a reliable vehicle with exceptional performance, the Dodge/RAM 6.7L Cummins equipped with the 68rfe transmission is definitely worth considering. Its proven track record and impressive features make it a popular choice among truck owners across various industries.

Rebuilding and Upgrading the 68rfe Transmission

When it comes to the 68rfe transmission, there may come a time when rebuilding or upgrading is necessary. Luckily, there are options available to help improve its performance and durability.

One option is the Rebuild-It Kit, which provides all the essential components needed for a thorough rebuild. It includes high-quality parts that ensure optimal functionality and longevity. Another option is the Stage 2 Transmission & Converter Package, which takes things up a notch with enhanced clutch materials and upgraded valve body modifications. These upgrades can significantly enhance the transmission’s ability to handle higher horsepower and torque levels. So whether you’re looking for a simple refresh or want to take your 68rfe transmission to new heights, there are solutions out there for you!

Rebuild-It Kit Options

When it comes to rebuilding and upgrading your 68rfe transmission, there are a few options to consider. One popular choice is the Rebuild-It Kits available on the market. These kits contain all the necessary components and parts you need to rebuild your transmission, ensuring that everything fits together perfectly.

With Rebuild-It Kits, you have the freedom to choose from different levels of upgrades based on your specific needs and budget. Whether you’re looking for a basic overhaul or want to go all out with high-performance upgrades, these kits have got you covered. From gaskets and seals to clutches and steels, each kit includes everything required for a successful rebuild project. So why wait? Get started on transforming your 68rfe transmission today!

Stage 2 Transmission & Converter Package

If you’re looking to take your 68rfe transmission to the next level, the Stage 2 Transmission & Converter Package is a game-changer. This package includes everything you need to upgrade and enhance the performance of your transmission. With a focus on durability and power, this stage 2 package offers improved torque capacity and clutch material upgrades for increased strength and longevity.

Not only does this package provide enhanced performance, but it also offers smoother shifting and improved towing capabilities. Whether you’re using your vehicle for daily driving or heavy-duty hauling, the Stage 2 Transmission & Converter Package delivers exceptional results. Upgrade your 68rfe transmission today with this top-of-the-line package!

Pricing Information

When it comes to pricing information for the 68rfe transmission, there are a few factors to consider. The cost of rebuilding or upgrading your existing transmission can vary depending on the extent of the work needed and the specific parts required. Rebuild-it kits for the 68rfe transmission start at around $500, while a complete Stage 2 transmission and converter package can range from $3,000 to $5,000.

It’s important to keep in mind that these prices may fluctuate based on factors such as location and availability. Additionally, labor costs should also be factored into the overall price if you plan on having a professional install or rebuild your transmission. It’s always recommended to do thorough research and consult with reputable sources or professionals when determining pricing options for your specific needs.

Choosing the Right Transmission for Your Needs

Choosing the right transmission for your needs is a crucial decision when it comes to optimizing the performance of your vehicle. Whether you’re hauling heavy loads or simply cruising down the highway, having a transmission that can handle your specific demands is essential.

When considering options like the 68rfe transmission, it’s important to assess factors such as towing capacity, fuel efficiency, and durability. Understanding how different transmissions operate and their capabilities will help you make an informed choice. Consulting with experts in the field can also provide valuable insights into which transmission will best suit your needs. Finding the perfect match between your vehicle’s requirements and a reliable transmission will ensure optimal performance on every journey

Final Thoughts and Resources

In this complete guide, we have delved into everything you need to know about the 68rfe transmission. From its history and technical specifications to comparing it with the Aisin transmission, we have covered it all. Now, let’s dive into some final thoughts and resources.

Choosing the Right Transmission for Your Needs
When deciding between the 68rfe and Aisin transmissions, it is important to consider your specific needs and preferences. Both transmissions have their own set of advantages and disadvantages. The 68rfe offers a reliable performance at an affordable price point, while the Aisin provides enhanced towing capabilities and smoother shifting. Consider factors such as vehicle usage, desired power output, budget constraints, and personal preferences before making a decision.


When it comes to selecting the right transmission for your vehicle, there are several factors to consider. The 68rfe transmission offers a reliable and durable option, especially for Dodge/RAM 6.7L Cummins vehicles from 2007.5-2018. Its technical specifications and real-world performance make it a solid choice.

However, it’s important to evaluate your specific needs before making a decision. Consider factors such as towing capacity, terrain conditions, and desired power output. Additionally, consulting with an expert or professional in the field can provide valuable insights tailored to your unique situation.
Remember that each vehicle has different requirements based on its intended use and individual preferences. Therefore, take the time to thoroughly research and consult with professionals who can guide you toward choosing the right transmission for your specific needs.

For more information on the 68rfe transmission or other automotive topics related to transmissions and drivetrains systems (Oops! I almost summarized there), be sure to check out reputable resources like manufacturer websites or specialized forums where experts share their knowledge.

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