I found that with the addition of a 3" extension and a universal joint, the driver is positioned perfectly between the blower flange for the three point pin. With one side cut down anyway, which I did to make the shaft connection about perfect. Then all it took was a scrap length of bungee cord, which I had in the shop's misc. bungee bin, with one end bolted to the blower, and the hook end, once the driver is set in place, hooked onto a flange on the blower. I timed how long it takes me to "install" the driver, 2 seconds, about the same to pull it when parking the tractor. I also timed the rotation speed of the chute: 180 degrees in 3 seconds! Fast enough, ha ha, and in actual use I feather the trigger to go slower. The last thing was to raise the blower into it's transport position to make sure nothing got crunched.
I'm calling this project complete, BETA testing is over. Zero out of pocket expense, as i won't replace my tool kit with another 1/2" drive x 3/8" socket (which I used to weld onto the shaft) as if I am messing with something that small I use my 3/8 or 1/4" sockets/ratchets. The 3" extension and u joint are not married to the tractor, but as quickly removable as the drive, cool. The weather cooperated nicely during this test phase, several days in a row of high winds and lots of snow every day, nothing like real world, out ofr my genuine original equipment 100% plastic kubota tool box just fine.that is this pic the shop, testing.