a trailer having a tobacco receiving box thereon is connected to a tobacco harvester which in turn may be pulled by a tractor or which may be self - propelled . the trailer is connected to the tobacco harvester by a hitch at one side of the harvester for forward and rearward movement of the trailer relative to the direction of movement of the harvester so as to evenly distribute the tobacco being delivered from the harvester into the tobacco box on the trailer . a double acting hydraulic piston and cylinder is connected to one end of a pivoted lever , the opposite end of which is connected to the trailer tongue , for oscillating the lever and reciprocating the trailer forwardly and rearwardly relative to the tobacco harvester .