Bones Hardcore bushings are designed with an internal structure that supports and strengthens the cushion to give you a better ride. Bonding high rebound Bones cushion urethane to the hard inner core gives the bushing better memory, quicker response and a shorter break in period. Your truck will center better, your turns will be smoother, easier to control, and your bushings will not pop out of their cups. Bones Hardcore bushings fit all major trucks Including Independent, Venture, Thunder, Tensor, Royal, and more. This listing features Medium 91A White bushings – 1 pack is enough to outfit 2 trucks.