GM Service Manual Online
For 1990-2009 cars only

The mechanical components of the Hybrid Two-Mode MK3 2MT70 Transmission are as follows:

    • Torque dampener assembly
    • Gerotor-type main fluid pump assembly
    • Gerotor type auxiliary fluid pump assembly
    • Input shaft and internal gear assembly
    • Sun gear carrier assembly first position
    • Drive motor with generator assembly first and second position (A & B) position
    • Internal gear assembly second position
    • Sun gear carrier assembly second position
    • VL 1-2R, C2-3-4, C1-3R and 4th clutch housing assembly
    • Main shaft assembly
    • Center support assembly
    • Output shaft assembly
    • Control valve body assembly

The electrical components of the Hybrid Two-Mode MK3 2MT70 are as follows:

    • Two electric concentric motors, motor A 47 KW and motor B 55 KW
    • Output speed sensor assembly
    • Manual shift shaft position switch
    • Control solenoid valve assembly, which contains the following components:
       - Transmission control module (TCM)
       - 6 variable bleed line pressure control (PC) solenoids
       - 4 transmission fluid pressure (TFP) switch assemblies
       - Torque dampener clutch pressure control solenoid (PCS5)
       - 2 shift solenoids

For more information, refer to Electronic Component Description.