Abstract: An improved Ackerman steering linkage for a steer axle maximizing steering forces available from a given hydraulic system pressure and minimizing space requirements. The lengths of the steer arms and quadrant are minimized by interconnecting a hydraulic steering jack to the quadrant on the diametrically opposite side of its pivot to the axle from its points of connection with the tie rods. Both ends of the steering jack impart steering forces to the steering linkage thereby reducing the design specification for the effective pressure area of the jack. The steering geometry improves the steering torque available at extreme steer positions, thus permitting a smaller diameter steering jack to be used. The improved steering linkage employs components which are sufficiently small to fit within the rims of wheels rotatably mounted on the wheel spindles on opposite lateral ends of the axle.