This is the stub shaft from a 1987 Ford F-350 kingpin dana 60 front axle. It is 30 spline for a standard 1480 universal joint, and still has the dust shield pressed on.
Raw Scan Formats: 2019.sldprt, .stl, .iges (74mb)
Note: Within the .sldprt mesh, the file has been aligned to a useful origin and has essential plane/cylinder references for easy file manipulation