Cognito Front Sway Bar for 19-23 Silverado/Sierra 1500 2WD/4WDDesigned 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.