Hotchkis Sport Suspension 2282 1964-1972 GM A-Body Extreme Sway Bar Set. Improve the handling performance and traction of your Chevelle GTO 442 or other GM A-Body with the Hotchkis Sport Suspension Extreme Sway Bar Set. The tubular front bar and adjustable rear bar design allows roll stiffness tuning for improved handling balance and traction and is designed to eliminate the hard mounted factory design rear bar. This system allows the rear sway bar to slightly pivot reducing fatigue and stress placed on the sway bar. Handling and traction are dramatically improved while the adjustable design allows for tunability for specific car set ups. This system is highly recommended for high horsepower cars or any GM A-Body owner looking for improvements in handling and traction. The kit includes TIG-welded end-links with easy to lubricate polyurethane bushings premium mounting hardware including stainless steel u-bolts laser cut axle mounts polyurethane bushings grade 8 bolts and gloss black powder coat finish. Features: Lightweight durable 1-3/8 in. tubular front and 1-1/4 in. tubular rear sway bar. Rear bar offers two adjustment options 75% and 100% stiffer than stock. Rear end-links feature precision TIG-welded construction with easy to lubricate polyurethane bushings. Premium mounting hardware including stainless steel u-bolts laser cut axle mounts polyurethane bushings and grade 8 bolts. Gloss black powder coat finish. Benefits: Increases stability and reduces body roll by increasing roll stiffness. Improves traction and is more effective efficient and durable than the stock bolt-on trailing arm type rear sway bar. Rear bar offers two adjustment options allow handling balance tuning to compensate for larger rear tires and front/rear weight bias. *NOTE* Will NOT work with OEM lower trailing arms. Works with part number 1302, Hotchkis lower trailing arms.