Machine description: Isuzu 6HK1X 6 Cylinder 7.8 L Diesel 260 hp Engine, 2008 US EPA Label, Automatic Transmission, 10000 lb Front Axle, 19000 lb Rears, 25950 lb GVWR, 295/75R22.5, Spring Suspension, 153 in Wheelbase, 7 ft... more info about the 2009 GMC TT7F042.