Abstract: A highly maneuverable straddle carrier vehicle structure is provided for dling various sizes of containers and outsized loads over rough, unleveled, weak and unprepared soils to meet austere requirements which are beyond the capability of commercial straddle lifts that normally operate on prepared surfaces within specific boundaries of yards and docks. Features include high flotation tires capable of operation over marginal terrain, fording capability, all wheel 360 degree steering and offset wheel yokes which permits automatic changing of wheelbase dimensions for rugged sloping terrain operations and wheel positioning for optimum mobility including lateral and oblique movement and vehicle rotation within its own length for a variety of close quarters operations. Load stabilization devices permit container securing during transit and hinged transverse members operate to reduce torsion and bending moments on the vehicle structure over severe terrain.