ICON Vehicle Dynamics has developed a tubular uniball upper control arm system for the 2004-UP Ford F-150 2WD or 4WD trucks. Weak OEM ball joints present problems by limiting suspension travel, especially when using our 2.5” VS Series performance coil-over shocks. Using 1” PTFE Lined Stainless Uniballs combined with our 17-4 Stainless Taper Pin Adapters increases the upper arms misalignment, allowing for smooth and clean wheel travel without worrying about factory ball joint bind. Unique to our engineering of this Uniball Arm is the 2 stage bushing kit that comes standard for reducing deflection along with improving durability & road response.; The Ford F-150 gets pushed to the edge of the alignment spec range when installing a set of after market leveling coilover shocks like our V.S Series 2.5" Coil Over Shocks. These arms not only add strength and durability, but correct the alignment specs by adding additional caster as well.