An example vehicle frame disclosed herein includes end frames having wheels coupled thereto, and a central frame coupled between the end frames, the central frame positioned at an offset relative to the end frames, the vehicle frame rotatable about a longitudinal axis of the vehicle frame between a first position and a second position, the central frame at a first distance from the ground when the vehicle frame is in the first position, the central frame at a second distance from the ground when the vehicle frame is in the second position, the first distance greater than the second distance.