RD688, Heavy Duty Trucks - Garbage Trucks - Roll-Off, Mack , 10 Spd, ROLL OFF TRUCK Engine Series E7 Engine Capacity L6, 12.0L (728 CID) Brake System Air GVWR Class 8: 33,0001Lbs and Over (RY51), Horse Power, Suspension, Wheels, Wheel Base, , Tandem Axle, Ratio,