R686ST Trucks - Conventional Tractor, T/A Conventional Day Cab, 1978 (unverified) Mack R686ST T/A Conventional Day Cab, Mack Engine, Manual Transmission, 168" WB, 10,500 lb. Front Axle, 34,000 lb. Rears, Camelback Suspension, Wet Kit, Sliding 5th Wheel. The engine started and ran. The drivetrain engaged in forward and reverse. The main components appear to be in place and operational but the unit has electrical problems., Auction OPENS AT 2100.0 USD, located in IA 52404 USA, Auction Ends on 07/14/2016