It believes the new severe-service truck will help it expand its presence ... included in the chassis enhancements of the new Western Star 49X, as well as the expansion of Ultimaax and Primaax ...

Western Star offers a twin-steer model with tandem 40,000-lb. steer axles available for the US heavy truck market The Western Star 4800 Twin Steer model has been a mainstay in severe-service ...