This system is developed around the same boxed, fully welded, heavy duty upper control arms as in the 2006 to 2011 system. The control arms are made from 1/8 Inch steel and CNC-machined bushing and ball joint cups. The arms use OE rubber bushing and greaseable factory style ball joints for quiet, reliable and low maintenance operation. The new UCAs dwarf the factory arms and provide a larger range of motion via the new ball joint. The ball joint position is also adjusted compared to stock to keep it in a neutral position with 2 to 3 Inch of lift.
