UMI Performance 78-88 GM G-Body 1in Tubular Rear Sway Bar Chassis Mounted Pro-TourUMI's G Body Pro Tour style bar is a true multi purpose high performance rear sway bar. The chassis and differential housing mounts reduce bind normally associated with the factory style bars. The bars are 1" diameter hollow and feature three different rates (street auto x, road race strip). UMI's tried and true CNC machined clamping system allows differential housing mounting on 2. 75", 3" and 3. 25" diameter housings. These can be bolted on, or