Machine description: Isuzu Diesel Engine, 2005 US EPA Label, CARB Compliant, Automatic Transmission, 5443 kg Front Axle, 10432 kg Rears, 15876.0 kg GVWR, 11R22.5, Air Ride Suspension, 198 in Wheelbase, 20 ft 3 in Hoist LO... more info about the 2005 GMC T8500.