Brand New Southwest Speed Rear Sway Bar Kit for 1955-1957 Chevy (Part #104-8963). These rear sway bar kits are designed as a performance replacement upgrade for your classic tri-five Chevy passenger car. They feature a 7/8" diameter solid steel bar and come with all hardware needed for a successful installation. If your 1955-57 Chevy came with an anti-sway bar from the factory, chances are this kit will be a direct replacement. If it did not, a small amount of drilling will be required for installation of the sway bar kit. Note: Pair with our front sway bar for additional body roll control, available here. Features: Achieve flatter cornering Complements front sway bar to reduce understeer and gain more neutral handing Adds to cornering stability at speed Solid steel 7/8" diameter bar Includes polyurethane bushings for increased responsiveness Black powder coated finish Corrosion resistant zinc plated hardware included Compatible with: 1955-1957 Bel Air 1955-1957 Nomad 1955-1957 One-Fifty Series 1955-1957 Two-Ten Series 1955-1957 Sedan Delivery 1957 Del Ray