Abstract: A flat bed truck wherein the bed includes a raised sill having a plurality of threaded apertures about the periphery and a cargo-personnel carrier having a peripheral shoulder mateable with the sill and held to the bed by quick-release bolts. The carrier preferably includes a forward wall having a forwardly protruding ellipsoidal shape to lower wind resistance and therefore stress on the bolts. The sill of the bed is also provided with a plurality of rectangular apertures adapted to receive stake members of a conventional livestock stake rack. The shoulder of the carrier may be provided with an interior vertically depending flange adapted to abut the interior vertical ledge of the bed sill to prevent lateral movement and to protect cargo from moisture.