QUOTE: Originally posted by Granvillealpha Do the SD-70M's that Union Pacific has bought over the last few years have the same trucks as the SD-70MAC. I currently have 6 Athearn SD-70M's in the UP Schemes and the trucks on the Athearn units are not the same as the ones I have seen on the UP units in my area. If the trucks on the UP SD-70M's are the same as the 70 MACs then I assume it would be just a truck swap?