Have used my 2305 ballast-less or with a 4' cutter for minor clearing work but have begun moving dirt, working on slopes or in ditches and very uneven ground with little maneuver room so decided to order a 15073 ballast box especially since my glutes are really toned now from all those cheek-squeezing reps!
Plan to add a couple of tool tubes and fill it with cement as per many ideas seen here but now think I would like to get the extension kit so I can throw a tool box, chains, etc on top of filled box. My question is will I be able to attach the extension to the box after I have filled it with cement? From pictures of the basic box, there appears to be an inner lip at the top on both front and back and I'm thinking that will be the top of the cement fill. How far does the extension overlap the box?