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What Is Better TR 6060 Or T670 Magnum? A Detailed Comparison

When it comes to high-performance manual transmissions, two of the most commonly debated options are the Tremec TR-6060 and the TR 6060 Or T670 Magnum. Both are widely used in muscle cars, sports cars, and performance builds, offering impressive durability and smooth shifting. However, they have key differences that can make one more suitable than the other depending on your needs. In this article, we’ll provide an in-depth comparison of the TR 6060 Or T670 Magnum, covering specifications, performance, durability, and ideal use cases.
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Overview Of TR-6060 And T-56 Magnum
What Is the TR-6060?
The Tremec TR-6060 is a six-speed manual transmission developed as an evolution of the T-56. It was first introduced in the 2007 Shelby GT500 and has since been widely used in high-performance vehicles like the Chevrolet Camaro ZL1, Dodge Challenger SRT Hellcat, and Dodge Viper. This transmission is known for its strength, increased torque capacity, and smoother shifting compared to its predecessor.
What Is the T-56 Magnum?
The T-56 Magnum is a high-performance aftermarket version of the T-56 transmission. It is designed as a direct replacement for older T-56 units while offering enhanced durability, improved synchronizers, and better gearing options. The T-56 Magnum is popular in restomod projects, muscle cars, and high-performance street vehicles due to its adaptability and high power-handling capacity.
Key Differences Between TR-6060 And T-56 Magnum
Torque Capacity
One of the most critical aspects of choosing a transmission is its ability to handle torque.
- TR-6060: Capable of handling up to 700 lb-ft of torque in factory applications, making it ideal for high-horsepower vehicles.
- T-56 Magnum: Rated for 700 lb-ft of torque as well but can often be modified to handle more power, depending on the build.
Synchronizers and Shift Quality
- TR-6060: Features triple-cone synchronizers in first and second gear, with double-cone synchronizers in the rest, resulting in smoother and faster shifts.
- T-56 Magnum: Uses triple-cone synchronizers for first through fourth gears, making it more forgiving and smoother shifting for aggressive driving.
Internal vs. External Shift Mechanism
- TR-6060: Has an internal rail shift mechanism, which provides a more precise and smoother shifting experience but may limit customization.
- T-56 Magnum: Utilizes an external rail shift mechanism, allowing for more flexibility in shift placement and customization.
Application and Installation
- TR-6060: Primarily designed for OEM applications, meaning it requires additional modifications for aftermarket installs.
- T-56 Magnum: Designed for aftermarket use, making it a more straightforward installation for restomods, classic cars, and custom builds.
Weight and Size
- TR-6060: Heavier than the T-56 Magnum due to its integrated bellhousing and larger casing.
- T-56 Magnum: Lighter and more compact, making it an easier fit for classic cars and custom swaps.
Gear Ratios
Both transmissions offer different gearing options depending on the application. However, the TR-6060 often features closer-ratio gearing for high-speed performance, whereas the T-56 Magnum offers more customization options for different driving styles.
Which Transmission Is Right For You?
Choose the TR-6060 If:
- You are installing it in a modern high-performance vehicle like a Camaro ZL1 or Challenger Hellcat.
- You prefer factory-installed reliability and performance.
- You need high torque capacity with minimal modifications.
Choose the T-56 Magnum If:
- You are working on a custom build or restomod project.
- You need flexibility in shifter placement.
- You want a more DIY-friendly installation without extensive modifications.
Final Verdict
Both the TR-6060 and T-56 Magnum are exceptional manual transmissions, each with its strengths and weaknesses. If you need a factory-grade, high-performance transmission, the TR-6060 is the better choice. However, if you are working on a custom or aftermarket build and need versatility, the T-56 Magnum is the way to go.
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FAQs
What is the difference between the TR-6060 and T-56 Magnum?
The TR-6060 is an OEM factory-installed transmission, while the T-56 Magnum is an aftermarket performance version of the T-56. The TR-6060 has better torque capacity and smoother shifting, whereas the T-56 Magnum is more adaptable for custom installations.
Can I swap a TR-6060 into an older vehicle?
Yes, but it requires significant modifications, including a custom bellhousing, driveshaft, and shifter relocation.
Is the T-56 Magnum good for drag racing?
Yes, the T-56 Magnum is an excellent choice for drag racing due to its high torque rating, strong synchronizers, and customizable gearing options.
How much horsepower can a T-56 Magnum handle?
The T-56 Magnum is rated for up to 700 lb-ft of torque, which translates to approximately 800-1,000 horsepower, depending on the application.
Why do modern muscle cars use the TR-6060 instead of the T-56 Magnum?
Modern muscle cars use the TR-6060 because it offers factory-level reliability, smoother shifts, and better performance under high torque loads. It is specifically designed for OEM applications and works seamlessly with modern performance cars.
This comparison should help you decide which transmission best suits your performance needs. Whether you go with the TR-6060 for factory performance or the T-56 Magnum for custom builds, both are excellent choices in the world of high-performance manual transmissions.
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