This unit has 3K on new tires and alum wheels. No smokers or pets. Very well maintained by Naverstar Dealers. Just been used towing fifth wheel campers and less than half of the miles are towing. No CDL required per hyd brakes. Exhaust brake,air ride suspension,air ride captain chairs,130 gallon fuel tank,gooseneck hitch,cruise control,tilt & telescoping steering,tinted glass,rear bench seat/fold down sleeper,power window and locks,CB radio,Panasonic stereo,6 disc CD player,and 49 cubic feet of lockable storage. For more info can fax original spec sheets. Have all original manuals Thank You For Looking