![]() ![]() As you can see, every gear consists of 2 clutch packs. This is a very common configuration for a double overdrive torque converter style 6-Speed automatic transmission. For this purpose, we should examine this information below: Something that is critical in understanding the 66RFE transmission is understanding it’s clutch application chart. How the 66RFE Transmission Clutch Packs Work:Įvery transmission has unique qualities in terms of how it calculates shift behavior, how it responds to solenoid inputs and more. We are proud to offer our years of research and development to you not only through our popular products, but through our informative and educational Drivetrain 101 series. Luckily, Next Gen Drivetrain proudly engineers and designs every last thing you could possibly desire for these transmissions. This leaves many Ram truck owners from this generation begging for support and solutions. Unfortunately, there is very little data support in the aftermarket to help make these transmissions more reliable. In succession, Chrysler converted to the more reliable, but more complicated ZF 8-Speed transmission.įor these 7 model years, all Ram 25 trucks that were fitted with gas engines and automatic transmissions featured the 66RFE transmission. This meant that warranty calls abound, the 66RFE transmission had reached the end of it's tenure in the Ram truck community after model year 2018. Naturally, the 66RFE transmission was as unreliable as it's already-in-production big brother, the 68RFE. On General Motors end, the 6 speed series of transmissions (6L80-E and similar) were standard. This meant that Dodge, per usual, was playing a game of catch-up with their outdated and inferior drivetrain technology. The 66RFE Transmission came to the market at a time when the Ford 6R80 was mid-swing, and the 10R80 was hardly a prospect. Top 5 Ways to Extend the Life of a Factory TransmissionĪ Brief History of the 66RFE Transmission: Calculating Torque Multiplication Factor, Why is it So Important? Top 5 Benefits of an Upgraded or Built Transmission Popular Transmission Information Resources: Resources for relevant updates and upgradesĬhrysler 66RFE Transmission Product Resources: ![]() The strengths (believe it or not, there are a few!) of this transmission Its capabilities in reference to TCM tuning and shift/lockup protocol modification The most popular failures we witness on the 66RFE transmission In this Drivetrain 101, we will be addressing: Whether you’re daily driving or drag racing, if you want to know more about the 66RFE transmission, this Drivetrain 101 is for you! Our goal is to ensure that you, the reader, are as empowered with knowledge as possible on the 66RFE transmission and it’s unique needs. In this Drivetrain 101, we will analyze, at length, the problems and solutions of the prolific and complicated 66RFE transmission. As this transmission evolved to account for the years of ever-increasing power, it retained the majority of it's known failure points. The 545RFE transmission echoes back to the 1990's 45RFE, a still similar transmission featuring electronic control. ![]() That stated, are you ready to become an expert on the “infamous” 66RFE transmission? The Chrysler 66RFE Transmission has been both a progressive leap and a plague to the Ram Truck Community since 2012, when it became the successor to the similar 545RFE Transmission. As a result, it became evident that this popular and often problematic transmission needed it’s own installment in our educational Drivetrain 101 section. Introduction to the Chrysler 66RFE Transmission:Īs the executive choice in high quality and proprietary 66RFE transmissions, rebuild kits and parts, we’re often pelted with questions about it’s numerous problems and how to prevent them. Conclusion to the Chrysler 66RFE Transmission Problem #2 - The High Pressure Oil Pump 66RFE Transmission TCM Tuning and Adaptivity Protocol How the 66RFE Transmission Clutch Packs Work A Brief History of the 66RFE Transmission Popular Transmission Information Resources Chrysler 66RFE Transmission Product Resources In this Drivetrain 101, we will be addressing Introduction to the Chrysler 66RFE Transmission ![]()
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