Cognito Front Sway Bar for 20-23 Silverado/Sierra 2500HD/3500HDDesigned to reduce body roll so you have better vehicle control and greatly improves traction for safer driving. Measuring 1.5 Inch in diameter and made from heat-treated and hot-formed 4140 chromoly steel for extra strength and durability. Larger sway bar clamps and polyurethane bushings are included. Made in the USA.