A utility vehicle includes a middle axle that is mounted at the end of a bogey beam for flotational movement relative to the frame of the vehicle. The rear axle is carried by a suspension mechanism supported from the frame of the vehicle. The middle axle is formed by a pair of stub axles interconnected by a support beam that is pivotally connected to the rearward end of the bogey beam. The rear suspension mechanism includes a pair of transversely spaced suspension struts interconnecting the frame and a rear axle member having the rear drive wheels mounted thereon. Connecting support links interconnecting the middle and rear axles maintain proper positional spacing between the middle and rear axles.