Multi-axis suspension system

A multi-axis suspension system for a vehicle includes a wishbone assembly rotatably connected to the frame about a longitudinal axis (9). An axle housing is connected to the wishbone assembly via a pair of four bar linkages (4a,5a). A pair of extendable hydraulic cylinders forms a supplemental connection between the rigid axle housing and the wishbone assembly. A hydraulic control circuit controls the length of the hydraulic cylinders to selectively control the relative distance between the axle housing and the wishbone assembly.