Input housing cracking and input shaft breakage are common failures when using the 4L60E/4L65E/4L70E transmissions for high torque applications.This kit addresses the issues by increasing the strength of these 2 troubled areas.With the tremendous power potential of the new LS type engines the failure rates become even greater. The drum is reinforced at its weak point by shrinking a stainless steel insert over this area to reduce fatigues that result in cracking.Torsional twist and fatigue failures occur across transverse oil holes,oil seal grooves and fillets on the input shaft.The input shaft is put through a heat treating procedure that hardens its molecular structure reducing breakage at its weak areas and then recieves a black oxide finish.Includes modified overrun piston machined to fit over the stainless steel insert.There is a $100.00 core charge on this item.Core must be returned for credit within 30 days or no refund will be issued. The core charge will be immediately refunded to you when you return the original to CKPERFORMANCE.PLEASE SPECIFY WITH OR WITHOUT TURBINE SENSOR.
E4340 STEEL BILLET OUTPUT SHAFT #4L60ECC/BOSA $449.00
The original 4L60E/4L65E/4L70E E4340 steel billet output shaft.In order for the shaft to perform its duties it is outfitted with many crossdrilled holes to supply lube oil to various components that are supported by it .These holes combined with the original equiptment material quality (selected based on its intended uses) compromise strength.When subjected to torque loads in excess of 400 foot pounds of torque the shaft has reached its structural and mechanical design limitations and can fail. After several field failures of this part we set out to design the industries one and only solution to the problem.Our in house CNC machined E4340 steel billet output shaft eliminates output shaft failures beyond 1000 foot pounds of torque.The shaft also features revised lube oil circuitry that improves lube flow to rotating internal components.This part should be installed in all transmissions behind engines producing in excess of 400 foot pounds of torque.PLEASE SPECIFY 2 OR 4 WHEEL DRIVE WHEN ORDERING.
UPDATED 5 PINION FRONT PLANETARY CARRIER #7R45FC $189.00
All GM 700R4 and 4L60E transmissions were fitted with 4 pinion front planetary carriers on the assembly line .When subjected to torque loads in excess of 350 foot pounds the carrier has reached its structural and mechanical design limitations and can fail. In 2001 GM introduced the 4L65E transmission and with it came an updated 5 pinion front planetary carrier .This original equipment carrier increases its torque transmitting capability to over 750 foot pounds .This was accomplished through the addition of one planetary pinion gear, revision of the carriers structure, and improved metallurgy. This part should be installed in all transmissions behind engines producing in excess of 400 foot pounds of torque.
UPDATED 5 PINION REAR PLANETARY CARRIER #7R45RC $289.00
All GM 700R4 and 4L60E transmissions were fitted with 4 pinion rear planetary carriers on the assembly line .When subjected to torque loads in excess of 350 foot pounds the carrier has reached its structural and mechanical design limitations and can fail. In 2001 GM introduced the 4L65E transmission and with it came an updated 5 pinion rear planetary carrier .This original equipment carrier increases its torque transmitting capability to over 750 foot pounds .This was accomplished through the addition of one planetary pinion gear, revision of the carriers structure, and improved metallurgy. This part should be installed in all transmissions behind engines producing in excess of 400 foot pounds of torque.
ROLLERIZED HEAT TREATED REACTION TUBE #7R4CC/RRT $139.00
Factory reaction tubes are prone to twisting when subjected to torque loads in excess of 350 foot pounds. This updated reaction tube is specially heat treated to eliminate twisting. It is also outfitted with a roller bearing that replaces the factory installed metal thrust washer. This bearing reduces internal friction and horsepower loss created and consumed during normal internal component rotation. Its enlarged lube passage improves rear gear set oiling and its black oxide finish reduces rear sun gear bushing wear. This part should be installed in all transmissions behind engines producing in excess of 350 foot pounds of torque.
THE BEAST EXTREME DUTY SUN GEAR SHELL #7R4CC/BS $59.99
All GM 700R4, 4L60E, and 4L65E transmissions suffer from shell spline stripping and collar failure. The results are no 2nd, 4th or reverse gears. This industry favorite completely eliminates shell failure and should be considered mandatory on all rebuilds at any power level.
