Answer:
You'll need the snowblower, the mule drive for the snowblower, and the belt off of your mower deck. The blower attaches where the mower deck mule drive snaps in with the two spring pins. The mule attaches to the bottom of the blower and back to the deck height adjustment hookup. Run the belt from your PTO, through your idler pulleys on the mule, then round the drive puller on the blower. Tension the belt and you're off. Case tractors are beautifully simple.