SPC adjustable front upper control arms for 2004-2020 Ford F-150 trucks lowered up to 3 inches. Forged-steel arms use sealed ball joints and xAxis flex joints in bonded-rubber sleeves.
 
They correct the camber and caster changes caused by lowering, helping tire wear and steering response. Ball joints provide 80 degrees of articulation, and free-pivoting flex joints let the suspension travel without binding at the arm pivots.
 
Forged-steel front pair with maintenance-free ball joints and bonded-rubber flex-joint sleeves. Camber adjustment: plus or minus 2 degrees. Adjustable caster. Includes both arms and adjustable ball joints. Part 35675.