2014 Used Automatic mileage: 523 KM or more 4WD For sale GMC Sierra 2014, mileage 523k, can be increased. Engine is sound, has not been opened. Gearbox was overhauled a while ago and has a knock in third gear when cold, needs (programming). Chassis is sound, airbags are sound, AC is sound. Auto 4WD, low and high range are working. Body: Hood, front right fender, and right door from the previous owner. There are notes present in the photos. The rest of the body is factory. Spark plugs have been changed and throttle body cleaned. It has a sports thermostat for the engine, a 40,000 BTU transmission cooler, fan programming, fuel consumption programming, deactivation of the 4-cylinder system + ABS and traction control disconnection, and bed light.