Suspension problems rarely stay confined to one component. A worn ball joint does not understand that it is supposed to damage only itself. A tired bushing changes how another part moves. A weak shock absorber allows the wheel to bounce more than it should. That extra movement can then increase stress on the tire, steering system, wheel bearing, brakes and other suspension components. https://medium.com/@scrapcarbuyermississauga/how-one-worn-suspension-part-can-affect-other-components-900ded82dccf