Those bearings aren't that expensive, but you might save a buck by buying from a local bearing distributor. Check the phone book, I have bought from bearings inc. just because I do a lot of business with them and they gave me a great deal.
you could also try your local auto parts store, NAPA carries bearings, i have bought jackshaft bearings from them,. but it is a good idea to take the old one in(providing it didnt fall apart) and have them measure to ensure an exact fit, saves a guy a few bucks vs. shipping charges.
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