A vehicle may operate in a first mode in which an electric motor operates in a forward state such that the rear ground traction members of the vehicle are driven forwardly by the electric motor while a hydraulic pump is powered by the electric motor and may alternatively operate in a second mode in which the electric motor operates in a reversed state such that the rear ground traction members are driven forwardly by the electric motor while the electric motor is operably decoupled from the hydraulic pump by a one-way clutch/bearing ring coupled between the electric motor and the hydraulic pump.