{"product_id":"6l80-performance-transmission-rebuild-kit-level-2-5","title":"6L80 Performance Transmission Rebuild Kit - Level 2.5","description":"\u003cdiv class=\"product-name\"\u003e\n\u003ch1\u003e6L80 Performance Transmission Rebuild Kit - Level 2.5\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"short-description\"\u003eRated up to 700 RWHP, HP ratings are contingent on numerous factors, such as tune, vehicle weight, power adder, use, etc. | Detailed Instructions Included | FREE UPS Ground to the contiguous United States (lower 48)\u003cbr\u003e\u003cbr\u003eKit is designed with stock dimension 36-tooth 4-5-6 clutch plates and will work with the OE intermediate 4-5-6 clutch hub. CDT's Billet 4-5-6 clutch hub and intermediate shaft (CDT part number 104680-36) is included in this kit. The 4-5-6 clutch pack provides 17% more surface area than a stock clutch set up. The 3-5-R clutch pack offers 25% more clutch area than stock.\u003cbr\u003e\u003cbr\u003eThis 6L80 transmission upgrade is engineered for those seeking unmatched transmission performance and reliability in both trucks and cars. Designed for heavy-duty use, it ensures optimal functionality with quality-tested components and detailed specifications tailored for various vehicles. Featuring special tools and precision-engineered parts, this transmission kit is perfect for those looking to upgrade or replace their current setup. With enhanced clutch packs offering increased surface area, the 6L80 transmission delivers improved performance and durability. Whether you’re driving for daily commutes or pushing your vehicle to the limits, this system is built to meet the demands of performance enthusiasts who hear and value quality. Easy to install and rigorously tested, it’s the ideal solution for enhancing your vehicle’s reliability and performance.\u003c\/div\u003e\n\u003cdiv class=\"availability\"\u003e\u003c\/div\u003e\n\u003cdiv class=\"pictureRep\"\u003e\u003cem\u003ePicture for representation purposes only. Actual contents may vary as we continue to develop our products.\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv class=\"pictureRep\"\u003e\u003cem\u003e\u003c\/em\u003e\u003c\/div\u003e\n\u003cdiv class=\"attributes\"\u003e\n\u003cdiv class=\"attribute-description\"\u003e\n\u003cp\u003eThis performance transmission kit comes with printed instructions for all of the items in the kit except for the Sonnax items. For installation instructions for Sonnax items, \u003ca href=\"https:\/\/www.sonnax.com\/in\"\u003eclick here\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCDT456L2.5\/80 (4-5-6 CLUTCH KIT)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e7 Borg Warner® Clutches\u003cbr\u003e6 Lindered Steel Plates \u003cbr\u003e1 Apply Plate\u003cbr\u003e1 Backing Plate\u003cbr\u003e1 Snap Ring\u003cbr\u003e2 Bonded Pistons\u003c\/p\u003e\n\u003cp\u003eCDT456L2\/80 offers 17% more clutch apply area than stock. This clutch module works with the OE intermediate 4-5-6 clutch hub. Lindered is a chemical and heat treatment process that hardens the steel, which results in less wear.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e104680-36 (BILLET INTERMEDIATE SHAFT \u0026amp; 4-5-6 CLUTCH HUB) \u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eOne piece 300M steel forging is heat-treated and shot-peened for maximum durability. This shaft doubles oil flow to the clutch pack for improved resistance to heat and longer clutch life. It is designed for use with the OE dampener to minimize risk of chirp\/squawk. The hub is designed for OE steels and clutches.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCDT35RL2.5\/80 (3-5-R CLUTCH KIT)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e5 Borg Warner® High Energy Clutches\u003cbr\u003e6 Kolene® Steels (varying thickness) \u003cbr\u003e1 Backing Plate\u003cbr\u003e1 Snap Ring\u003cbr\u003e\u003cbr\u003eCDT35RL2.5\/80 offers 25% more clutch apply area than stock. High Energy material maintains consistent frictional behavior and tolerates extreme thermal stress applications. Kolene steels provide a surface treatment that enhances wear \u0026amp; fatigue resistance.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCDT26L2.5\/80 (2-6 CLUTCH KIT)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e5 Borg Warner® Clutches\u003cbr\u003e5 Steels\u003cbr\u003e1 Snap Ring\u003cbr\u003e1 Hi-Per Blue® Bonded Piston\u003c\/p\u003e\n\u003cp\u003eHi-Per Blue® Pistons are manufactured with upgraded High-Performance Blue AEM material for superior thermal and chemical resistance with better fit and 6L80 transmission performance.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCDT1234L2.5\/80 (1-2-3-4 CLUTCH KIT)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e5 High Energy® Clutches\u003cbr\u003e5 Steels\u003cbr\u003e1 Snap Ring\u003cbr\u003e1 Spiral Snap Ring\u003cbr\u003e1 Snap Ring Kit\u003cbr\u003e1 Hi-Per Blue® Bonded Piston\u003c\/p\u003e\n\u003cp\u003eHigh Energy material maintains consistent frictional behavior and tolerates extreme thermal stress applications. Hi-Per Blue® Pistons are manufactured with upgraded High Performance Blue AEM material for superior thermal and chemical resistance with better fit and 6L80 transmission performance.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCDTLRL2.5\/80 (LOW-REVERSE CLUTCH KIT)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e5 High Energy® Clutches\u003cbr\u003e5 Steels\u003cbr\u003e1 Hi-Per Blue® Bonded Piston\u003c\/p\u003e\n\u003cp\u003eHigh Energy material maintains consistent frictional behavior and tolerates extreme thermal stress applications. Hi-Per Blue® Pistons are manufactured with upgraded High Performance Blue AEM material for superior thermal and chemical resistance with better fit and transmission performance.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCDTVBPKL2.5\/80-90 (VALVE BODY \u0026amp; PUMP KIT)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e2 Boost Valve Springs\u003cbr\u003e2 Clutch Regulator Valve Springs\u003cbr\u003e1 Center Support Seal Kit\u003cbr\u003e1 Pressure Regulator Valve Kit\u003cbr\u003e1 Line Pressure Booster Kit\u003cbr\u003e1 O-ringed End Plug Kit\u003cbr\u003e1 Pump Slide Spring\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eCDTMKL2.5\/80 (MASTER KIT)\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e1 High Performance Overhaul Kit engineered utilizing premium materials for racing.\u003cbr\u003e1 Bonded OE Valve Body Plate \u003cbr\u003e1 Bushing Kit (includes extension housing bushings)\u003cbr\u003e1 Pan Gasket\u003cbr\u003e1 Filter\u003cbr\u003e1 Oversized Pump Washer\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWe do not include welded hubs in Kit. In the beginning of R\u0026amp;D on this 6L80 transmission, we thought this area needed strengthening. However, in all the units that we've rebuilt, we've NEVER seen one broken. Therefore, we deemed it unnecessary. Also, we do not include a billet pump rotor because the factory pump rotor has proven itself reliable (we have never seen one broken) unlike the 4L60E.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003e\u003cspan data-color=\"var(--purple-10)\"\u003eWhy Choose Circle D Transmission\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cspan data-color=\"var(--purple-10)\"\u003eCircle D Transmission has built a reputation as the trusted leader in transmission performance in Houston, Texas, the surrounding areas, and nationwide. With decades of experience and a commitment to excellence, Circle D delivers precision-engineered products like the 6L80 transmission rebuild kit, ensuring unmatched quality and reliability. Known for their expertise, cutting-edge technology, and dedication to customer satisfaction, Circle D stands out as the go-to source for performance transmissions and upgrades. Whether you’re in Houston or across the country, their premium products and personalized support make them the best choice for enhancing your vehicle’s transmission and overall performance.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eRecommended Transmission Tools\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eTransmission holding fixture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eCalipers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDial Indicator Set\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eBushing Drivers \u0026amp; Arbor Press for Bushing Installation (Bushings should only be replaced as needed)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eSealing Ring Protector and Sizer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eVarious Clutch Spring Compressors\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eOutput Carrier\/Shaft Lifting Tool\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003e1-2-3-4 \u0026amp; 3-5-R Clutch Housing Installer\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eLarge Snap-Ring Pliers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p1\"\u003e\u003cspan class=\"s1\"\u003ePump Alignment Tool\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003eMisc. Transmission Information\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003e\u003cspan data-color=\"var(--purple-10)\"\u003eUpgraded Parts:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-color=\"var(--purple-10)\"\u003eIf 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-color=\"var(--purple-10)\"\u003eTransmission Tuning:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-color=\"var(--purple-10)\"\u003ePlease 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s2\"\u003e\u003cstrong\u003eFlushing Cooler \u0026amp; Lines:\u003c\/strong\u003e\u003cspan\u003e \u003c\/span\u003eWe cannot stress enough the importance of flushing the transmission cooler(s) and lines, even if they are new.\u003c\/span\u003e\u003cspan class=\"s1\"\u003e We recommend using a Hot Flush Machine Flush Machine or something comparable.\u003cspan\u003e \u003c\/span\u003e\u003cspan class=\"Apple-converted-space\"\u003e                                     \u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-pm-slice=\"1 1 []\"\u003e\u003cstrong\u003e\u003cspan data-color=\"var(--purple-10)\"\u003eAuxiliary Cooler:\u003cspan\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-color=\"var(--purple-10)\"\u003eYou 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.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Circle D Transmission","offers":[{"title":"Default Title","offer_id":62754383823007,"sku":"CDTL2.5PK\/80-P","price":2965.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0424\/7571\/6767\/files\/0000238_6l80-performance-transmission-rebuild-kit-level-25.png?v=1775508738","url":"https:\/\/streetdrivenperformance.com\/products\/6l80-performance-transmission-rebuild-kit-level-2-5","provider":"Street Driven Performance","version":"1.0","type":"link"}