Has anyone seen or owned an older Sears tiller? I haev an 8hp sears front tine tiller...24" wide i think. It has what is called a til-row attachment, which furrows your garden after you till it. It works great, but im missing a part, which of course, is discontinued. Anyone have this thing, or know what it is or where i can get a diagram of it so i can maybe build the part i need? Sears does not have a pic online...and they can't fax me one for some reason.