GM Service Manual Online
For 1990-2009 cars only

The mechanical components of this unit are as follows:

    â€¢ A torque converter with a torque converter clutch (TCC)
    â€¢ A drive link assembly
    â€¢ 4th and Lo/Reverse band assemblies
    â€¢ Forward, coast, 2nd and 3rd multiple disc clutches
    â€¢ Two planetary gear sets
    â€¢ Two sprag clutches, Forward and 2nd
    â€¢ One roller clutch, Lo
    â€¢ Three fluid pumps
    â€¢ Two control valve assemblies
    â€¢ A final drive assembly with a bolted on case extension

The electrical components of this unit are as follows:

    â€¢ Two shift solenoid valves, 1-2 and 2-3
    â€¢ A torque converter clutch pulse width modulated (TCC PWM) solenoid valve
    â€¢ A transmission pressure control (PC) solenoid valve
    â€¢ An automatic transmission fluid temperature (TFT) sensor
    â€¢ Two speed sensors: input and vehicle speed sensor
    â€¢ An automatic transmission internal mode switch (IMS)
    â€¢ An automatic transmission fluid pressure (TFP) manual valve position switch
    â€¢ An automatic transmission wiring harness
    â€¢ An automatic transmission wiring extension harness

Refer to Electronic Component Description .