TH400 Competition Components

Use with engines producing up to 750 foot pounds of torque in vehicles weighing up to 4000 pounds. Input shaft is manufactured from proprietary steel billet material. Undercuts behind the splines are eliminated, resulting in increased spline length and diameter, increasing spline engagement at the clutch housing interface over 35%. Fully machined, shaped, and ground on precision CNC equipment. 

Use with engines over 1250 foot pounds of torque in vehicles exceeding 4000 pounds. Will handle more torque in lighter vehicles. Input shaft is manufactured from Aermet 100 steel billet blanks, the strongest practical material available for automatic transmission shafts. The OEM forward clutch housing is bored out and fitted with an oversize 40 spline input shaft, vastly increasing surface area at the interface, eliminating housing failures. Fully machined, splined, and ground on precision CNC equipment. 

Use with engines producing up to 1000 foot pounds of torque in vehicles weighing up to 4000 pounds. Will handle more torque in lighter vehicles. Input shaft is manufactured from proprietary steel billet blanks. The OEM forward clutch housing is bored out and fitted with an oversize 40 spline input shaft, vastly increasing surface area at the interface, eliminating housing failures. Fully machined, shaped, and ground on precision CNC equipment. 

Use with engines producing up to 1250 foot pounds of torque in vehicles weighing up to 4000 pounds. Will handle more torque in lighter vehicles. Input shaft is manufactured 300M steel billet blanks. The OEM forward clutch housing is bored out and fitted with an oversize 40 spline input shaft, vastly increasing surface area at the interface, eliminating housing failures. Fully machined, splined, and ground on precision CNC equipment. 

Use with engines producing up to 1000 foot pounds of torque in vehicles weighing up to 4000 pounds. Will handle more torque in lighter vehicles. Input shaft is manufactured from  proprietary steel billet blanks. 7075 billet aluminum clutch housing is five pounds lighter than OEM and is sealed and hard coat anodized to reduce seal ring bore and clutch plate to housing wear common with other designs. Housing is bored out and fitted with an oversize 40 spline input shaft, vastly increasing surface area at the interface, eliminating housing failures. Fully machined, shaped, and ground on precision CNC equipment. 

Use with engines producing up to 1250 foot pounds of torque in vehicles weighing up to 4000 pounds. Will handle more torque in lighter vehicles. Input shaft is manufactured from  300M steel billet blanks. 7075 billet aluminum clutch housing is five pounds lighter than OEM and is sealed and hard coat anodized to reduce seal ring bore and clutch plate to housing wear common with other designs. Housing is bored out and fitted with an oversize 40 spline input shaft, vastly increasing surface area at the interface, eliminating housing failures. Fully machined, shaped, and ground on precision CNC equipment. 

Recommended for applications with forced induction engines producing over 1250 foot pounds of torque in vehicles weighing up to 4000 pounds. Will handle more torque in lighter vehicles.  Manufactured from Aermet 100 steel billet blanks, the strongest practical material available for automatic transmission shafts. Features lite-weight 7076 billet aluminum forward clutch housing  with oversize 40 spline input shaft, vastly increasing surface area at the interface, eliminating housing failures. Fully machined, splined, and ground on precision CNC equipment. 

Premium bare direct housing without checkball. Accepts six .080" clutch plates, six .077" steel plates, .580" piston w/ checkball and 34 element sprag. Great for most performance applications behind engines producing up to 1000 hp and 750 lbs. ft. in vehicles weighing up to 3800 lbs.

Premium six friction direct housing specially prepared for transbrake applications. Includes 34 element sprag, heavy duty sprag outer race, retaining plate, spiralock, clutch piston w/seals, return springs, and spring retainer w/snap ring. Just add clutch pack and install. Great for competition applications with transbrake valve bodies behind engines producing up to 1200 hp and 750 lbs. ft. in vehicles weighing up to 3800 lbs.

This custom drum assembly is fit with oversize tool steel inner  and outer sprag races, an oversize 36 element sprag assembly, and a custom sprag retaining plate and spiral lock ring. Modified inner race distributes lube oil to the sprag assembly more efficiently. This drum uses factory OEM clutches and steels. This drum has been tested behind engines producing over 2000 horsepower/1800 foot pounds torque. 

A fully assembled and tested "drop in" direct clutch housing loaded with exclusive CK Performance products for competition applications with transbrake valve bodies behind engines producing up to 1200 hp and 750 lbs. ft. and weighing up to 3800 lbs.

This custom drum assembly is fit with oversize tool steel inner  and outer sprag races, an oversize 36 element sprag assembly, and a custom sprag retaining plate and spiral lock ring. Modified inner race distributes lube oil to the sprag assembly more efficiently. This drum uses factory OEM clutches and steels. This drum has been tested behind engines producing over 2000 horsepower/1800 foot pounds torque. 

CK Performance Products has taken the performance and durability advantage of the early design intermediate clutch outer race one step further by offering a fully inspected, specially stress relieved and black oxide coated version of this factory performance part, making it an excellent choice for all high output GM TH400 applications.