Hello, Thank you for your answer! I have made some changes on the model, at it seems it is correct the direction of the force, but what I want to know is, in a MacPherson suspension, what part should be the one that reduces the braking forces? I know that the shock absorber should take care about the majority of the vertical forces (weight and any anomaly of the road, because the control makes just a small angle), and the control arm about the lateral ones (since the arm is almost horizontal) but who takes care about the braking one? since in the model it seems as there isn´t any reaction of the arm in the braking direction (y)