One piece, simulated Arch Bar Truck castings suitable for 7.5" & 7.250" gauge railroads running 1.5 & 1.6 scale "ride on" models. These beefy trucks are made from highly machinable 6061 Aluminum. The trucks include tabs suitable for installing functional brakes. The unique layout of the castings are designed to allow most all of the mill work to be completed with only a one time setup on the table which will help accommodate a more "square" truck, that if reasonable care is taken by the builder will deliver a rapid, easy build that promises to track straight. Extra large journal box bosses will readily accommodate sealed bearings. Each casting set provides both side frames and bolster. A spring plate can be easily be add by with a builder supplied flat bar, but we are confident that it will prove to be unnecessary. These truck are ideal for a beginning machinist or for a hobbyist who wishes to build a fleet and put multiple cars on the track in rapid order. These kits do not come with springs, bearings, axle stock or wheels because of the variety of individual preference and local availability.