Gabriel G63717 Ultra Truck Shock for select Ford Expedition/Lincoln Navigator models Precision-engineered for the ultimate in safety and performance Comes equipped with G-Force Technology for quicker response, improved product life and performance, and consistent, reliable ride and control Stable Steer Valving - Provides consistent response from all four corners, giving you the most stable, safest ride G-Force Piston - Bonded iron construction for durability and longer life This item is not for sale in Catalina Island