Hotchkis Sport Suspension 2236 1970-1981 GM F-Body Sport Sway Bar Set. Improve the cornering of your 70-81 GM F-Body by reducing body roll with a set of Hotchkis Performance Sway Bars. Hotchkis bars are CNC bent for a precise fit and feature lightweight hollow construction and include greasable polyurethane bushings end links fabricated rear links stainless u-bolts brackets and all necessary hardware. Hotchkis bars are powder coated for durability and tested and tuned to ensure the best performance possible. 1 3/8 in. Hollow Front 7/8 in. Hollow Rear. Looking for a a Trick Upgrade? Try our Billet Sway Bar Mounts.