6 Cylinder 6.7 L Diesel Engine, Automatic Transmission, 5200 lb Front Axle, 6200 lb Rears, 10100.0 lb GVWR, 265/70R17, Spring Suspension, 161 in Wheelbase, 8 ft 6 in x 74 in Bed

6 Cylinder Diesel Engine, 6-Speed Manual Transmission, 5200 lb Front Axle, 6150 lb Rears, 9900 lb GVWR, 315/70R17, Spring Suspension, 143 in Wheelbase, 7 ft 2 in x 82 in Bed

Cummins 6 Cylinder 5.9 L Diesel Engine, Automatic Transmission, 4740 lb Front Axle, 9350 lb Rears, 11500 lb GVWR, Dual Rear Wheel, 235/80R17 Front Tires, 235/80R17 Rear Tires, Spring Suspension, 165 in Wheelbase, 8 ft 10 in x 96 in Bed