"The Ariens Company 53212600 20"" Aluminum Gearcase is a high quality, high performance product that can be used for small commercial and home snow blowers. This gearcase is made of a lightweight yet strong material, aluminum which will provide this gearcase with strength and durability. It functions in a snow blower by providing a cover to the gear mechanism that powers the auger thu... https://www.wholetoolbox.com/ariens-company-53212600-20-aluminum-gearcase-small-cd