1999 MACK, RD688S, Heavy Duty Trucks - Cab & Chassis Trucks, MACK E7, Manual, good truck, runs great, clean, double frame, 20,000 lbs lift axle, air seat, cruise, ready for a 16 ft bed, 400 Horse Power, Camelback Suspension, Aluminum/Steel Wheels, Wheel Base, 22.5, Axle, 4.42 Ratio, , VIN 1M2P270C1XM045703