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1. #2003 CORVETTE 4L60E SHIFT KIT INSTALL#
2. #2003 CORVETTE 4L60E SHIFT KIT FULL#
3. #2003 CORVETTE 4L60E SHIFT KIT PRO#
4. #2003 CORVETTE 4L60E SHIFT KIT SERIES#

#2003 CORVETTE 4L60E SHIFT KIT INSTALL#

We also install the Proprietary Performance Billet Servo for maximum “apply pressure” in second gear and overdrive, providing maximum additional holding ability in 2nd & 4th gear.

#2003 CORVETTE 4L60E SHIFT KIT FULL#

This stronger 2-4 band will hold the torque during that tire chirping shift into second at full throttle in your performance machine. This band has approximately 20 percent more surface area for holding in both second and fourth gears. Next, we install the reverse input drum for the new Max Duty Performance Wide Band. Since these friction plates must hold the power of your vehicle in every forward gear, they have to be tough enough for the job.įinally, we replace the 3-4 clutch set with 8 high-energy Borg Warner friction plates and Raybestos steel plates to avoid heat burn and coning. These forward friction plates have a superior holding capability as well as improved ability to withstand extreme heat when compared with the OEM friction plates. Next, we install new heavy duty overrun friction plates, A BORG WARNER DUAL CAGE INPUT SPRAG ASSEMBLY, and carbon composite forward friction plates.

We re-inspect the input drum before installing new rubber seals and a neoprene lubrication seal. Then the output shaft is set for the proper end-play. The front sun gear, like the rear sun gear, is then modified for improved lubrication and installed. Next, we re-inspect the front planetary assembles – measuring clearances and making sure everything is within our own rigid specifications before installing it and inserting the output shaft. No matter how hard you beat on it, THIS SHELL DOES NOT BREAK! The GFX Shell is able to withstand the rigors of the street, the strip, or the mud whichever is your pleasure. We then replace the sun shell with a new heavy duty unit The GFX Shell, which far exceeds the factory component. Simply put, these planetary assemblies with good lube DO NOT EASILY FAIL even in the most demanding environments. When you see one of these with a damaged rear planetary, it will almost always be accompanied by the blue-black signs of excessive heat. Their failure is almost exclusively due to a lack of lubrication. In fact, contrary to common opinion, the rear planetary assembly in these transmissions is not, in any way, weak by design. This is a huge improvement and virtually eliminates one of the most common points of failure for this type of transmission. This allows oil to escape from between the bearing and the gear it rests against, feeding additional lube to the planetary gears. Next, the sun gear is inspected and modified to improve lubrication to the rear planetary assembly. In addition, dual bushings are installed in the rear sun gear to handle the extra weight of the beast sun shell. At this time the center support and sprag (one way roller) are installed after being inspected for stress cracks and damage. The rear planetary assembly and bearings are meticulously inspected, then assembled into the case along with heavy duty reverse friction and steel plates.

The seals in the case are then replaced and assembly begins. The case is specially prepared and a coating of and heavy duty, heat resistant, oil based enamel is baked on, creating a hard and durable glossy finish. The case and hard parts are cleaned thoroughly and re-inspected for cracks, wear, or other damage before we begin.

#2003 CORVETTE 4L60E SHIFT KIT PRO#

We believe you will not find a better performance transmission anywhere!īelow are the details of our Pro Race (LEVEL-2) built transmission.įirst, each core transmission is disassembled and carefully inspected. We incorporate all the updates and modifications to compensate for the problems and issues they were born with from the factory. These transmissions are tough and built to handle whatever you dish out.

#2003 CORVETTE 4L60E SHIFT KIT SERIES#

Our Pro Race Series transmission is the finest built street/race automatic transmission in the industry. Description Pro Race Series (Level 2) 4L60EĪ Core is Required for all C5 Corvette Builds