Machine description: Cat C7 6 Cylinder 7.2 L Diesel 190 hp Engine, 2005 US EPA Label, Mercedes MBT520S-6D 6-Speed Manual Transmission, 10000 lb Front Axle, 19000 lb, Rears, 5.22:1 Axle Ratio, 11R22.5, Spring Suspension, 1... more info about the 2006 Freightliner BUSINESS CLASS M2 106.