OEM steel end links are a small, flimsy and can fail if a larger rear swaybar is installed. A weak rubber lower bushing can flex greatly after installing a stiffer aftermarket rear swaybar. This flexible rubber bushing removes some of swaybars effectiveness, making your stiffer aftermarket swaybar less stiff. PERRIN endlinks are made of two high strength rod ends providing a solid No-Flex connection between your swaybar and chassis. This translates into a more predictable and better handling car.