Boxed Upper Control Arms Lighting 2014-2018 GMC Sierra 2WD /

2014-2018 GMC Sierra 2WD / 4WD

5” of Lift

2007-2018 Chevy Silverado 4WD

This product will not work with aftermarket spindles

Machined from 17-4 stainless these spacers are precision machined to factory tolerances and allow you to adapt a 3/4" heim joint as your new UCA pivot

Boxed Upper Control Arms Lighting 2014-2018 GMC Sierra 2WD /Description There are multiple issues when lifting your vehicle with stock upper control arms. Both the geometry and strength are compromised due to over articulating the stock arms. We solved these problems by designing our upper control arms with increased castor and repositioned pivot angles reducing stress on the joints. The increased castor allows for proper alignment and improved handling. We also replaced the weak factory ball joints with 1