Legal analysis: Raising the rails of a truck is considered a modification. Truck modification: generally refers to the fact that the appearance of the vehicle does not match the driving license. Adding a water tank, welding a rope tightener, raising the railings, not installing troughs, etc., and even installing an air conditioner are considered modifications.

Legal basis: "Road Traffic Safety Law of the People's Republic of China" Article 16 No unit or individual may engage in the following acts: 1. Assemble a motor vehicle or change the registered structure of a motor vehicle without authorization , structure or characteristics. 2. Change the vehicle model, engine number, frame number or vehicle identification number. 3. Forge, alter or use forged or altered motor vehicle registration certificates, license plates, driving licenses, inspection marks, and insurance marks. 4. Use the registration certificate, number plate, driving license, inspection mark, and insurance mark of other motor vehicles.