UMI Performance 78-88 GM G-Body 1in Solid Rear Sway BarOur beefy 1" solid rear sway bar is designed to reduce body roll, understeer and increase cornering capabilities resulting in a more balanced suspension. This rear sway bar also works excellent to keep your vehicle level and straight during those hard launches. Our sway bar is manufactured from 1" solid 4140 chromoly steel, heat treated and formed as one piece to ensure maximum strength and performance. This sway bar is heat treated and formed as one