jmazz,
I don't have that model tractor, but see below for screenshots of what I found starting at MTDProducts.com, then browsing the Cub site and looking for parts. I searched on 2176. Looks like your compatible throwers are the 340 or 341 depending on which width you want.
As for what other thrower/blower models might work for it, someone else here might be able to answer that. Just be aware that attachments that weren't designed for your tractor but which you think "should fit" may require some degree of modification in both attachment geometry, PTO orientation/ratio, or all of these (see the blower link in my sig for an example).
Most folks I've read about here who use snowthrowers or blowers do use weights (or fill their tires with washer fluid or calcium), and some also use chains, but opinions vary. Some use neither and get by just fine. I use both, but I started using them when I would plow (not blow) and plowing requires lots of traction. With the blower, traction is less of an issue so I could probably get away with less. Also my driveway is pretty level.
Can't tell you much about the carb icing or lifter spring. I didn't have any carb icing problems, and some of my winter forays were around 15 deg F but I might have just been lucky.
I don't have that model tractor, but see below for screenshots of what I found starting at MTDProducts.com, then browsing the Cub site and looking for parts. I searched on 2176. Looks like your compatible throwers are the 340 or 341 depending on which width you want.
As for what other thrower/blower models might work for it, someone else here might be able to answer that. Just be aware that attachments that weren't designed for your tractor but which you think "should fit" may require some degree of modification in both attachment geometry, PTO orientation/ratio, or all of these (see the blower link in my sig for an example).
Most folks I've read about here who use snowthrowers or blowers do use weights (or fill their tires with washer fluid or calcium), and some also use chains, but opinions vary. Some use neither and get by just fine. I use both, but I started using them when I would plow (not blow) and plowing requires lots of traction. With the blower, traction is less of an issue so I could probably get away with less. Also my driveway is pretty level.
Can't tell you much about the carb icing or lifter spring. I didn't have any carb icing problems, and some of my winter forays were around 15 deg F but I might have just been lucky.