9.50" Column for Hydraulic Steering Orbital Valves, 3/4" Smooth Shaft, 12 Spline Orbital Side (250mm). This steering column measures 9.50 inches from the base of the flange to the outer edge of the shaft. 3/4" Smooth Shaft to fit most steering wheel quick disconnects. 12 Spline Orbital Side, Fits most orbitals valves on market.