This part is made of malleable cast iron, and on one side it is connected to the arm of the chamber and on the other side it is connected to the brake system and finally to the wheel with the help of a ball joint. One of the important features of this part is the angularity of the ball joint relative to the horizon. Which will ultimately lead to better steering and stability of the vehicle. The large geometric and dimensional tolerances of this part have made its production very complex.