ICON 03-09 Toyota 4Runner/FJ 0-3.5in Stage 4 Suspension System w/Billet UcaThis system features upper control arms with ICON's patented Delta Joint. The Delta Joint is a heavy duty high angle ball joint that combines the durability of a ball joint with the performance characteristics of a traditional uniball. While the industry standard uniball does a great job of allowing the control arms of a vehicle to articulate with little bind, they do have an inherent weakness that leaves more to be desired when used in a daily driven