<br />Kit is designed with 36 tooth 4-5-6 clutch plates. CDT's Billet 4-5-6 clutch hub and intermediate shaft (CDT part number 104680-36) is not included in this kit. This clutch pack provides 17% more surface area than a stock clutch set up.">
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6L80 Level 2.5, 4-5-6 CLUTCH KIT:
7 Borg Warner® Clutches
6 Lindered Steel Plates
1 Apply Plate
1 Backing Plate
1 Snap Ring
2 Bonded Pistons
CDT456L2.5/80-P offers 17% more clutch apply area than stock. Lindered is a chemical and heat treatment process that hardens the steel, which results in less wear.
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 & 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.
Limited Warranty Statement
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 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 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.