The box of a manure spreader should last at least as long as its working components – bearings, chains, sprockets, etc. When these components start to go bad, a decision must be made whether the spreader is worth repairing or if it is time to purchase a new unit. From a consumer viewpoint, is it logical to build a spreader box that will outlast by three times the life of the working components? Bear in mind that this kind of extra box life in a new spreader will most likely cost almost double up front. With our cor-ten steel sides, Conestoga tries to achieve a practical balance between the life of the sides and working component wear.