Abstract: A one way drive device for transmitting torque from a rotational input to a rotational output when the device is driven in a counterclockwise torque transmitting rotational direction by the rotational input. The device allows the rotational input to freely rotate in a clockwise overrun direction relative to the rotational output. The one way drive device includes a dog clutch to transmit torque when driven in the torque transmitting direction and a ratchet clutch to provide the overrun function.