The Mack Model "B" was first produced in 1949 and remained in production until 1966 when it was replaced by the Model "R". Both series of trucks enjoyed a long service life with many of the "R" models still in continuous service. Even today, a Model "B" can also occasionally be seen in operation. During their life times both types were converted to any number of tasks. These ranged from two and three axle tractors, to tow trucks, to use as construction trucks. A Mack Model "B" or Model "R" could handle any job that required a heavy-duty truck. Athearn's latest Ready-To-Roll vehicles are exacting miniatures of the Mack "B" and "R" family of trucks that have been faithfully reproduced in the 1/87th scale. They will be available equipped for tow truck, dump truck, cement mixer and over-the-road tractor service. Each variant is modeled from documented Mack trucks and captures the distinctive qualities of each prototype. Mack licensed models * Available in either two or three axle versions to duplicate the prototype * Clear molded windows * Factory assembled with all detail parts applied * Meticulously detailed molded and photo-etched parts * Vinyl tires * Molded cab interiors * Razor sharp printing and painting