<br />This transmission clutch kit is designed to work with 45-tooth 4-5-6 clutch plates, providing a 50% increase in surface area compared to a stock clutch setup. To use this clutch pack, the CDT Billet 4-5-6 clutch hub and intermediate shaft (CDT part number 104680-45-P) are required. Please note that the clutch hub and intermediate shaft are not included in this kit and must be purchased separately for proper installation and performance.">
CDT456L3/80 offers 50% more clutch apply area than stock. G3® friction material is formulated to achieve minimal wear and maximize heat resistance. Our steels are heat-treated and cooled in air, producing a stable and consistent plate that resists warping and ensures smooth clutch operation. This process improves durability and promotes even wear when paired with premium friction materials. Hi-Per Blue® Pistons are manufactured with upgraded High Performance Blue AEM material for superior thermal and chemical resistance, with better fit and performance.
The 6L80 Level 3, 4-5-6 Clutch Kit (CDT456L4/80-P) is engineered for high-performance applications that demand greater torque and heat capacity. This heavy-duty 6L80 transmission clutch kit delivers 50% more clutch apply area than stock clutches, significantly enhancing transmission performance while reducing the risk of clutch failure in demanding environments.
For maximum reliability and longevity in any high-stress application, this clutch kit is your go-to solution.
This transmission clutch kit includes seven G3® clutches, nine heat-treated steels (varying thicknesses), one stepped apply plate, one wide backing plate, one snap ring, and two Hi-Per Blue® bonded pistons. The G3® friction materials are formulated for maximum heat resistance and durability, helping to prevent excessive wear and clutch failure. The heat-treated steels undergo a heat treatment process to harden the steel, significantly reducing wear and extending the clutch’s lifespan. Additionally, the Hi-Per Blue® pistons are made with advanced AEM material, offering better thermal and chemical resistance while improving fit and overall performance.
To use this clutch kit, the CDT Billet 4-5-6 clutch hub and intermediate shaft (CDT part number 104680-45-P) are required. These parts are not included in the kit and must be purchased separately to ensure proper fitment and functionality. The billet hub and intermediate shaft replace weaker stock components, preventing common failures such as spline shearing and clutch hub breakage. By combining this clutch kit with the necessary billet parts, you can optimize your transmission’s strength, reliability, and performance, whether on the street or track.
The 6L80 Level 3 4-5-6 clutch kit offers 50% more clutch apply area than stock setups, providing better heat resistance and durability for vehicles with increased power and torque demands.
Yes, this kit requires the CDT Billet 4-5-6 clutch hub and intermediate shaft (CDT part number 104680-45-P), which must be purchased separately to ensure proper installation and optimal performance.
The G3® clutches are designed to maximize heat resistance and reduce wear, ensuring smoother shifts and increased clutch life under extreme driving conditions.
Our 4-5-6 steels are heat-treated and cooled in air, producing a stable and consistent plate that resists warping and ensures smooth clutch operation. This process improves durability and promotes even wear when paired with premium friction materials.
While this kit is designed for high-performance and racing applications, it can be used in daily driver vehicles, but it is optimized for vehicles with higher torque and power requirements.
Upgraded Parts: If you have an early pump cover (stator) that does not utilize anti-rotational tabs on the sealing rings or an early 1-2-3-4/3-5-R clutch housing that does not have the matrix stamp, you will need to install a factory-upgraded pump cover and clutch housing.
Transmission Tuning: Please understand that proper tuning of the TCM and ECM is mandatory. All 6L80/90’s are torque-based shifted units. The torque signal is calculated through the ECM. Therefore, transmission performance and longevity are directly dependent on the delivered torque signal that’s calculated in the ECM. If this is not done properly, you will experience premature transmission failure. We also do not recommend maxing out pressures or deleting torque management completely because it will cause seal failure and/or hard part breakage.
Flushing Cooler & Lines: We cannot stress enough the importance of flushing the transmission cooler(s) and lines, even if they are new. We recommend using a Hot Flush Machine Flush Machine or something comparable.
Auxiliary Cooler: You need to install a stacked plate auxiliary transmission cooler (not a tube and fin style cooler) rated for 25,000 GVW. The ideal operating temperature for this transmission is 180°or less. These transmissions tend to run very hot, so the cooler will lower the operating temperature and recovery time, which in turn will extend the life of your transmission.
Circle D's Transmission Rebuild Kits carry a 1 year, parts-only warranty, exclusively against manufacturer’s defects. The warranty period begins at the date of purchase. There is no warranty under the conditions listed below. This includes, but is not limited to:
Circle D Transmission will not pay for any fluids replaced in the event of a rebuild kit failure.
Under no circumstances shall there be any labor warranty or other warranty coverage on Circle D Transmission Kits beyond the replacement of individual rebuild kit components. We will not provide you with any cash refund except as may be required by law. Consequential and incidental damages are not recoverable under this warranty and are expressly excluded.
There is no warranty on broken parts such as, but not limited to, twisted splines, broken shafts, or broken planetaries.
Warranty issues will be considered on an individual basis.