The Rancho RS9000XL Performance Truck Shock Absorber seamlessly blends style and durability. Its enlarged body diameter not only enhances aesthetics but also boosts functionality. The 18mm Nitro Carb rod provides strength and longevity. This shock absorber offers nine levels of adjustable performance, and it’s nitrogen gas-charged for optimal function. Its enduring and attractive liquid metallic finish adds to its appeal. The inclusion of polyurethane bushings further augments durability and performance, while a protective boot shields the shock rod and oil seal. The 9-position adjustment knob helps to simplify tuning. This product is backed by a limited lifetime warranty.