AW-4 4-Speed

The AW-4 is a four speed, electronically controlled automatic transmission. Features include a lock-up torque converter, three planetary gear sets, clutch and brake units, hydraulic accumulators and a valve body controlled by electrical solenoids and transmission computer unit (TCU). Vehicle speed and throttle position are monitored by the TCU, which then appropriately adjusts the valve body solenoids. Fourth gear is and overdrive gear having a ratio of .705:1.