Grand Trunk Western 4-8-4 No. 6408 rests at the Milwaukee Junction terminal in Detroit on September 2, 1958, ready to join the afternoon commuter rush out of Brush Street Station to which these premium main-line passenger haulers had been demoted. David V. Leonard is the photographer. The evaporative heating surface of class U-4-b totaled 3860 square feet, with 1530 square feet of superheating surface, and their firebox had 73.7 square feet of grate area. For additional specifications, see the builder's photo page for No. 6405.