COLUMBIA 120, Heavy Duty Trucks - Dump - Transfer Trucks, Detroit series 60, 10 Spd, 2012 Columbia Glider with Series 60 Detroit. NO DPF or DEF!!! 70'' raised roof double bunk sleeper, 12 Horse Power, Air Ride Suspension, Wheels, 230 Wheel Base, 295/75, Tandem Axle, Ratio,