There are TWO configurations of the sleeve part!
early engines, 1949, had the sleeve made integral with the pulley, as with a 59A. Later, most '50-53, had the sleeve as a separate part. Long ago, I spent some very bad hours fighting with a situation very much like your picture trying to shove a pulley from a '49 truck into an EAB engine...took me quite a while to figure out what I was up against!