A tool bar apparatus has an elongate tool bar having a longitudinal tool bar axis, and ground engaging tools fixed thereto. Wheels are rotatably fixed to the tool bar and roll about a rotational axis parallel to the tool bar. A hitch frame is pivotally attached at a rear end thereof to the tool bar about a hitch pivot axis parallel to the tool bar axis, and has a hitch tongue at a front end thereof. An actuator pivots the tool bar about the hitch pivot axis from an operating position, where the ground engaging tools extend rearward, to a transport position where the ground engaging tools extend upward from the tool bar. The wheels move rearward under the tool bar when the tool bar pivots from the operating position to the transport position such that a downward force is exerted on the hitch tongue when in the transport position.
