Hotchkis Sport Suspension 2282R 1964-1972 GM A-Body Extreme Sport Rear Sway Bar. The Hotchkis Extreme Sport Rear Sway Bar for your 64-72 GM A-Body is designed to eliminate the hard mounted factory design rear bar allowing for better rear suspension articulation in extreme usage vehicles. This system allows the rear sway bar to slightly pivot reducing fatigue and stress placed on the sway bar in the factory design. 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. Specs: 1-1/4 in. Tubular Bar with two stiffness settings. Includes axle mounts Stainless u-bolts greasable bushings and end links. Interested in finding out the difference between the 2202R and the 2282R Extreme Sway Bars? Visit our GM A-Body FAQ at www.hotchkis.net