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. 78 in. Hollow Rear.