Hello Cockshutt Room I have inherited a cockshutt 35 with a small piece of land in st marys ontario. When I was bush hogging the field the rim blew and the tube burst out. Not knowing to much about tractors I am trying to take the back rim off. I have it all blocked up in my barn, the lugs out but I see a metal piece in the key way grove in the axle...does this have to come out first or is it just rusted on? Please help. Ken