Machine description: Cat 3116 6 Cylinder 6.6 L Diesel 300 hp Engine, 1996 US EPA Label, 6-Speed Manual Transmission, 11000 lb Front Axle, 22000 lb Rears, 33000 lb GVWR, 11R22.5, Spring Suspension, 182 in Wheelbase, Self-L... more info about the 1997 GMC C7H042.