4900EX, Heavy Duty Trucks - Conventional Trucks w/ Sleeper, Caterpillar C-15, 18 Spd, jake brakes overhauled with paper work new 18 spd transmission great running truck ready to hit the road, 550 Horse Power, Air Ride Suspension, Aluminum Wheels, 260 Wheel Base, 22.5, Tandem Axle, Ratio, 66 Star Light Sleeper-Low Roof