Our tubular rear sway bars offer multiple advantages over the non-effective stock rear bar. First, unlike the factory bar, ours attaches to the rear end housing and to the chassis crossmember as opposed to the stock lower control arm mounted bar. By using the chassis to stabilize the rear axle as opposed to the opposite control arm, we are able to minimize deflection as your car is placed under a heavy cornering load. Second, the Detroit Speed bar mounts to the chassis with our Swivel-Links™ (Patented), allowing free articulation of the bar, eliminating binding through the range of rear suspension travel. Our bar is also made of 1-1/8" tubular steel for added strength. The bar comes powdercoated in a high gloss black finish and includes all necessary mounting hardware.A-Body Rear Sway Bar Rates: Front Hole: 597 lb/in. Rear Hole: 736 lb/in.