Abstract: A bed conveyor for use in a truck used to transport palletized loads of stacked packages and for delivering the packages (e.g., by means of an overhead conveyor) to a location remote from the truck (e.g., a roof top). The bed conveyor comprises a plurality of rails that extent longitudinally along the bed floor of the truck, which rails define a top weight bearing surface for supporting the weight of the palletized loads of stacked packages. The bed conveyor also includes a pusher member at least partially disposed above the top surface of the rails, and drive means for driving the pusher member and the palletized load rearwardly on the rails of the truck bed. The truck may also include a lift platform rearward relative to the bed conveyor for raising the palletized loads off the truck bed for easier unloading onto the overhead conveyor.