A movable device mounted to the interior of a truck bed. The movable device is generally comprised of at least one housing unit, a track mounting system and at least two tracks. The housing unit is capable of traversing from the front end of the truck bed (proximate the cab of the truck) to the rear end of the truck bed (proximate the tailgate). The current invention includes tracks mounted to the bottom surface of a truck bed. The housing unit of the invention is mounted to those tracks by a track mounting system. By translating the housing unit towards the rear end of the truck, the device is capable of forcing contents contained within the truck bed towards the rear end of the truck.