Machine description: Isuzu 4HK1TC 4 Cylinder Diesel 190 hp Engine, 2005 US EPA Label, CARB Compliant, Automatic Transmission, 5360 lb Front Axle, 9880 lb Rears, 14500 lb GVWR, 215/85R16, Spring Suspension, 152 in Wheelbas... more info about the 2006 GMC W4500.