Its been changed to have a Civi part for the spacer. The thing in picture #4, in your hand is pot metal and/junk and not original. Lokk for the one in the TM. You can find it. There were a lot of parts that would interchange with that engine, because it GMC, and that is an example. I would be afraid of it. Thats a big, heavy fan and you will need it - the truck needs it too. On a steep pull, she will run at max RPM generating lots of heat. If there is any play/wobble on the fan blades, replace the water pump bearing. Its an assembly and shaft that all that stuff is pressed on to. I had one fail with the fan into the radiator, back when they were much easier to come by. You can still get them. Go to the John Deere implement dealer. They have them and the appropriate shaft seal w/instructions on how the rebuild the pump, for their water jumps. Good Luck
