CHN612, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Mack E7-350, 10 Spd, Wholesale to you. Very clean rig that runs great and has the power leash engine brake and a Eaton 10 speed, 350 Horse Power, Air Ride Suspension, All Steel Wheels, 212 Wheel Base, 22.5, Single Axle, Ratio, 48