Camburg KINETIK 16in. Sway-bar Arms Only (pair)Our Camburg KINETIK sway bar arms are available in many different lengths, one size doesn't fit all. They are machined in house from billet 7075 T6 domestic aircraft quality aluminum for optimum strength and fatigue resistance. Not cheaper lower grade import materials. The arms are broached for large 1. 5" 35 splines, not smaller 1 1. 25" like many other companies do that can strip out. We use double pinch bolts to secure the arm to the torsion bar