i am looking for a manual for this machine. i am told if i have the part number, i can order parts from Sears from "DIVISION 71, SOURCE 536" through their customer service parts number, touch tone, or maybe even online... but I don't have a manual and need new brass bushings on the axle, drive axle, and maybe a sprocket.... if i can't find anything, i will be looking to offload this wonderously great monster of a snowblower