Machine description: Cat 3116 6 Cylinder 6.6 L Diesel 200 hp Engine, 1997 US EPA Label, 6-Speed Manual Transmission, 8100 lb Front Axle, 16900 lb Rears, 23900 lb GVWR, Aluminum Outer Wheels, 245/70R19.5 Front Tires, 265/7... more info about the 1998 GMC C6500.