Diesel Conventional from 1984 DS - Lighter-weight trucks for construction and refuse 1983-1987 E1, E3 & E5 - Electric trucks in the 1920s KK - Construction model from 1974 RB/RL/RM - Conventionals 1937-1940 UD/UN/US/UT, etc. - Engine-under-the-seat/Cabover 1933-1937 UA/UB/U-10 to U-90 - Engine-under-the-seat/Cabover 1935-1952 WX "Xpeditor" - Cabover, 2001 to 2009 WXLL "Xpeditor" - Low-entry cabover, 2001 to 2009 Gallery References External links Motor vehicle manufacturers based in Indiana Emergency services equipment makers Truck manufacturers of the United States American companies established in 1897 Vehicle manufacturing companies established in 1897 1897 establishments in Indiana Brass Era vehicles