1 pair unassembled HO scale National Swing Motion 70 ton trucks equipped with 33" wheels on a 68" wheelbase with a 2-1-2-1-2 spring configuration. Designed to be used with Intermountain 33" wheelsets. The prototype trucks are used on Union Pacific CA-11 and CA-11M cabooses as well as some autoracks, flatcars, intermodal spine cars and other freight cars.
Construction Notes: