The Hellwig rear sway bar for 2011–2019 Chevrolet/GMC 2500/3500 HD trucks (including dually) is a solid, heat-treated chromoly 1-1/4" unit that stiffens the rear to reduce body roll and improve control while towing and carrying heavy loads. As a precision-engineered bolt-on upgrade it replaces undersized factory bars to enhance everyday drivability and is backed by a Limited Lifetime Warranty.
Hellwig 11-19 Chevrolet Silverado 2500 HD Solid Heat Treated Chromoly 1-1/4in Rear Sway Bar