Hotchkis Sport Suspension 2236R 1970-1981 GM F-Body Rear Sport Sway Bar. Improve cornering of your 70-81 GM F-Body by reducing body roll with a Hotchkis Performance Rear Sport Sway Bar. 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. 7/8 in. Hollow Rear. Hotchkis Sport Suspension 2236R 1970-1981 GM F-Body Rear Sport Sway Bar. Improve cornering of your 70-81 GM F-Body by reducing body roll with a Hotchkis Performance Rear Sport Sway Bar. 1970-1981 GM F-Body