Icon Vehicle Dynamics 2003-UP Toyota 4Runner Delta Joint Retrofit KitDelta Joint Retrofit Ball Joint kit for 2003 UP Toyota 4Runner using ICON Vehicle Dynamics tubular steel or billet aluminum upper control arms. KEY FEATURES: Patent pending Delta Joint combines the durability of a ball joint with the performance characteristics of a traditional uniball Sealed design and zinc plated housing protects Delta Joint from the elements, road salts, and other debris Metal on metal internals and a greasable design for maximum