A 57,000-lb. tridem rear axle and 23,000-lb. front axle enhance traction in demanding off-road conditions, making the 4800SB 8x8 all-wheel-drive especially effective for digger derricks and other heavy equipment. Its two-speed transfer case improves gradability in both low- and high-speed operations with minimal operating noise. Power ratings: 350 to 470 hp; 1,250 to 1,650 lb.-ft. torque.

Western Star Truck Sales Inc.