Volkswagen Bora is a full-size car owned by Volkswagen, and it is not easy to change it. Automobile rear suspension is a force transmission connection device between the frame and the axle, and the disassembly and assembly of automobile suspension cannot be welded and reshaped. Suspension is the most precise and complicated mechanical part in the mechanism, and the rear suspension is one of the most important parameters to prevent the car from bumping. The elastic element, shock absorber and force transmission device of automobile suspension are complicated in design and difficult to replace.