Heavy Duty Trucks - Conventional Trucks w/o Sleeper, , Cummins ISX, , 450 Horse Power, AG 380 Suspension, Aluminum Outside Wheels, Wheel Base, 22.5LP Tire Size, Tandem Axle, 3.70 Ratio, Location California We are available to answer any questions. Monday-Sunday 8a.m. to 9p.m. EST