GM Service Manual Online
For 1990-2009 cars only

The mechanical components of the 4L60-E are as follows:

    • Torque converter assembly
    • Servo assembly and 2-4 band assembly
    • Reverse input clutch and housing
    • Overrun clutch
    • Forward clutch
    • 3-4 clutch
    • Forward sprag clutch assembly
    • Lo and reverse roller clutch assembly
    • Lo and reverse clutch assembly
    • Two planetary gear sets: Input and Reaction
    • Oil pump assembly
    • Control valve body assembly

The electrical components of the 4L60-E are as follows:

    •  1-2 and 2-3 shift solenoid valves
    •  3-2 shift solenoid valve assembly
    • Transmission pressure control (PC) solenoid
    • Torque converter clutch (TCC) solenoid valve
    • TCC pulse width modulation (PWM) solenoid valve
    • Automatic transmission fluid pressure (TFP) manual valve position switch
    • Automatic transmission fluid temperature (TFT) sensor
    • Vehicle speed sensor assembly

For more information, refer to Electronic Component Description .