To select a Model 8, 10 or 10A for rebuilding, if you have a few to choose from – All New Idea spreaders have the raised words New Idea, Coldwater, Ohio on the bull gear. The No. 8 is being rebuilt in many areas due to the shortage of 10A’s and because they are still very popular. The 10A is the most recent of the spreaders and all three can be rebuilt. The 10 and 10A are the most popular for rebuilding as parts are available for putting these spreaders back into use.