Got the fan today! Now the dilema. The fan shaft supports were all broken, welded, broken again due to the fan not being balanced any more. I got a right side support working. The left side bolts to the block with the alternator belt adjuster. That hole is stripped! To get to it, I need to pull the radiator. Sounds easy at first. To do that, you have to pull the fan shaft out of the way, At the rear of the engine, the fan shaft assy. is also the rear engine mounts. Just a few more bolts and I can pull the engine. That might be the easiest way to put a heli-coil in the boss. Biggest challenge is how the PTO is hooked to the front. Not sure on that yet. Here's a few pics:
That's the new fan.
Here's the boss that is stripped.
This is my answer to not having covers for the pulleys on the deck. I just covered the idler pulleys. When it rained, they were holding water which was seeping into their bearings. The blade shafts grease from the bottom, so I am not so worried about them.