Abstract: An apparatus for discharging material from the tail gate of a truck box comprises a first auger mounted on the tail gate. A second auger can be coupled to the first and is movable between a stored position and a position extending from one side of the truck by a pivot arrangement between the two augers. A third auger arrangement can replace the second auger and is movable between a first stored travelling position to a second working position providing an alternative path for the material by which the material can be discharged from a high point. Details of the couplings between the folded portions of the augers are disclosed.