Abstract: An apparatus for loading a truck box is provided for use with snowmobiles and the like. The apparatus includes a pair of mounting elements arranged to mount on the respective tailgate mounts of the truck box in place of the tailgate of the truck so that no modification to the truck bed is required upon installation. A shaft is supported on the pair of mounting elements for rotation about an axis laterally across the back end of the truck box and includes a sprocket coupled for rotation therewith. A frame arranged to support a snowmobile and the like thereon is supported on the shaft to extend transversely thereto and has a rack mounted on a bottom side thereof for engaging the sprocket.