378, Heavy Duty Trucks - Dump Trucks, Cummins ISX, 18 Spd, New 16' Hilbilt Mongoose Bed 54/54 1/4" Hi-Lift Gate New W and C Steerable Pusher 13.2K New Electric Tarp, 500 Horse Power, Air Trac Suspension, Wheels, 232 Wheel Base, 11R22.5, Tri Axle, Ratio,