Sorry Guy---My first answer sounded more ignorant than I intended it to be. Do you have access to a digital camera that can show some good pictures of what you have? I am sure that I can design something to help you out. An extension of 3" kind of sucks, because it isn't really long enough to put an auxiliary support bearing on it, but its too much overhung loading on the box to just let it stick out that much without some kind of secondery support.