Circle D 6L80 Performance Transmission Rebuild Kit - CDT Level 2.5

Picture for representation purposes only - actual contents may vary as we continue to develop our product.

Rated up to 700 RWHP, HP ratings are contingent on numerous factors, such as tune, vehicle weight, power adder, use, etc. | Detailed Instructions Included

CDT456L2.5/80 (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 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.

104680-36 (SONNAX BILLET INTERMEDIATE SHAFT & 4-5-6 CLUTCH HUB) One 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.

CDT35RL2.5/80 (3-5-R CLUTCH KIT)
5 Borg Warner® High Energy Clutches
6 Kolene® Steels (varying thickness) 
1 Backing Plate
1 Snap Ring

CDT35RL2.5/80 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 & fatigue resistance.

CDT26L2.5/80 (2-6 CLUTCH KIT)
5 Borg Warner® Clutches
5 Steels
1 Snap Ring
1 Hi-Per Blue® Bonded Piston

Hi-Per Blue® Pistons are manufactured with upgraded High-Performance Blue AEM material for superior thermal and chemical resistance with better fit and performance.

CDT1234L2.5/80 (1-2-3-4 CLUTCH KIT)

5 High Energy® Clutches
5 Steels
1 Snap Ring
1 Spiral Snap Ring
1 Snap Ring Kit
1 Hi-Per Blue® Bonded Piston

High 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 performance.

CDTLRL2.5/80 (LOW-REVERSE CLUTCH KIT)
5 High Energy® Clutches
5 Steels
1 Hi-Per Blue® Bonded Piston

High 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 performance.

CDTVBPKL2.5/80-90 (VALVE BODY & PUMP KIT)
2 Boost Valve Springs
2 Clutch Regulator Valve Springs
1 Center Support Seal Kit
1 Pressure Regulator Valve Kit
1 Line Pressure Booster Kit
1 O-ringed End Plug Kit
1 Pump Slide Spring

CDTMKL2.5/80 (MASTER KIT)
1 High Performance Overhaul Kit engineered utilizing premium materials for racing.
1 Bonded OE Valve Body Plate 
1 Bushing Kit (includes extension housing bushings)
1 Pan Gasket
1 Filter
1 Oversized Pump Washer

We do not include welded hubs in Kit. In the beginning of R&D on this 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.