TRW ps pump question

Another difference between TRW and Federal pump- you can see that the TRW pump "loads" from the front and the back end of the shaft is exposed enabling support of the shaft when pressing on the pulley. The Federal pump "loads" from the back and is capped off by a large "plug", thus covering the end of the shaft. To properly press on a pulley on these pumps, the rear cover needs to be removed to support the shaft. Now we all know more about these pumps- thanks for the photos.