When Reverse Is Selected

Hydraulic pressure from the control valve is applied to the reverse clutch piston when a shift is made into the reverse. The drive and driven plates are pressed together by this pressure, so that the engine torque from the high clutch drum is transmitted to the front sun gear through the 2-4 brake hub.

Fig 1: Reverse Clutch Function Diagram (When Reverse Selected)

Courtesy of SUBARU OF AMERICA, INC.