Hello all. I'm sure there is a post already about this but I can't find it so thought I would start a new post. I have a 1993 520h and I'm looking at a 2003 79362 snowblower to buy but not sure if it will work on mine. The tractor it's on now is a 2003 and looks like a 520 but don't know model. Only going by pics. The weird thing I noticed on the blower is that it has pulleys and belts on each side of the blower. Not sure how that works and hooks up. Any help will be much appreciated