Sometimes you have to leave the house, and where I live there tends to be a inconsistent amount of snow. Well, I purchased an old Sears Eager-1 5HP 22 inch snowblower (model 536.909400) from a good friend of mine last year, and never got to use it . Needless to say, it was a bit hard to manage the snow this year, as it's got bad tires (no chains either) and a bad muffler (ouch). It's got plenty of power, but it doesn't push so well. Here's why: Trying to replace these terribly round things proved difficult. Not available from Sears Parts Direct. Ebay it is. Eventually, after much searching, came across these beasts: 11 x 4.00 - 4 Wheel, 2 Ply Tractor Tread, 3/4" ID w/ 2 Crossholes x 3-1/8" Symm They might look a too big, but the originals (with no tread) are 9.5" dia, and these are 11". I don't care. The width is just about right, bore is 3/4", and they've actually got tread! I won't have to utilize ramming