Helix Rear 4-Bar and Coilover Conversion Kits

Helix offers rear 4-bar and coilover shock conversion kits for a wide range of applications—including many Buick, Chevrolet, Oldsmobile, and Pontiac cars and trucks from the 1960s and '70s. These suspension kits are a precision balance of ride comfort and maximum road adhesion. You'll immediately feel the difference with Helix coilovers with reduced body roll on corners, nose drive, and squat when accelerating. The springs are manufactured from the highest quality spring steel, using state-of-the-art equipment and the latest technology available. The coilover springs are available in different spring rates. Improve performance without compromising consistency and durability. Order the kid recommended for your vehicle. Additional details: * Style: 4 bar and coilover shock kit * Valving: Performance street * Finish: Black * Upper coil style: Pigtail * Adjustable: Uppers – Yes; lowers – no * Material: Heavy-duty Hardened Steel * Shock finish: Polished * Shock color: Silver * Charged: Nitrogen * Upper mounting: Spike * Lower mount: Stud Plate * Style: Triangulated * Bushings: Polyurethane * Installation: Bolt-on * Tubing: 2x3 lowers and 1.5 in. uppers * Hardware: Included * Instructions: Included Show Less