Operation CHARM: Car repair manuals for everyone.

Reverse Range

In reverse, the direct clutch is applied to direct turbine torque to the sun gear shaft and sun gear. The rear band is also applied, holding the reaction carrier.

Clockwise torque to the sun gear causes the front pinions and front internal gear to turn counterclockwise in reduction. he front internal gear is connected directly to the output shaft, thus providing the reverse output gear ratio of approximately 2 to 1. The reverse torque multiplication at stall (converter and gear ratios) is approximately 4 to 1.