Finally got the Sweepster 36" head mounted and working on the Homelite today. I think I have about 7 or 8 hours into this.
Took off the 48" head and swapped.
The smaller brush doesn't cover the width of the tractor, it is offset to the right. Hangs out 6" to the right, the left front tire is running outside of the path the broom is clearing. I think I am going to leave it, it would take a lot of modding to get it to line up properly.
There is a 90 degree gear box attached to that pulley. Then #40 roller towards the front to drive that pto shaft you can see peeking out.
When I tried it out, it threw that chain that runs forward from the pulley gearbox. Not aligned very well. Had to do a lot of modifying to get the two gears lined up and the chain tight, without the knuckle hitting something. After that was fixed, I broke the chain running the broom head. Luckily I had a repair link on hand. This afternoon I finally was able to use it for an hour without breaking something, so it is back in cold storage. Now I have to adapt the 48" head over to the Bolens set up.