Recognized as the first nine-position manually adjustable ride control series in the off-road market, Rancho RS9000?XL struts deliver unprecedented control and performance. Ideal for on- and off-road use, towing and more, the adjustable damping enhances ride characteristics by counteracting the additional unsprung mass inherent in larger tire and wheel combinations. Polyurethane bushings enhance performance and durability while a boot protects the shock rod and oil seal.