RD600, Heavy Duty Trucks - Cab and Chassis Trucks, Mack E7, 9LL, nice unit for year that we sold new and just took back in on trade... unit is state inspected and ready to work for you had a mixer mounted on it but is ready for the body of your choice! call 540-773-7097 and ask about it today!, 350 Horse Power, Hendrickson Suspension, All Steel Wheels, 250 Wheel Base, 11R22.5, Tandem Axle, Ratio,