Generally speaking, the five major assemblies of a car refer to: engine, transmission, front axle, rear axle, and frame. If more than two of these five parts are damaged, the value of the car to be repaired is relatively low.

Among them, the engine, transmission and frame should be familiar to everyone, so what do the front axle and rear axle refer to? The front axle refers to the device that transmits the force in all directions between the frame and the front wheel and the resulting bending moment and torque. same meaning.

The five major assemblies are popular in the society, and the "National Vocational Qualification Training Course" has a more detailed and accurate description of the components of the car. The car consists of four major parts: engine (two major institutions, five departments), chassis ( power train, steering train, driving train, brake train), body (cab, frame, box) and electrical (start, lighting, ignition, instrumentation, signal).