Performer IAS Shocks: The patented Inertia Active System (IAS) senses road conditions and allows for a firm, responsive ride while cornering. When the going gets rough, an IAS valve softens the circuit in milliseconds for ultimate comfort and control.

Adjustable Upper Trailing Arms: A SEMA Popular Mechanics award winner for outstanding design innovation, Edelbrock's Adjustable Upper Trailing Arms allow for easy and precise adjustment of pinion angle for improved alignment, which results in better traction and handling. Constructed with a spherical ball clevis on one end and a steel mounting bracket on the other, this heavy-duty assembly is tied together with a hard anodized aluminum adjuster sleeve.

Lower Trailing Arms: Made from a minimum .120" thick, cold-rolled steel, Edelbrock's Lower Trailing Arms offer superior strength, drastically reducing flex in your vehicle's rear suspension. Polyurethane bushings and greaseable fittings are included.

Tubular Trailing Arm Braces: Constructed of 1.250" tubular steel, these trailing arms triangulate the rear crossmember and upper and lower trailing arms of GM A and G-body vehicles, which results in a firmer, more solid support system in the rear suspension.

Adjustable Panhard Rod: This panhard rod complements other suspension modifications by enabling precise rear axle alignment to reduce body roll, improve handling, and maximize suspension travel without binding. Greaseable polyurethane bushings are included.

Adjustable Torque Arm: This heavy-duty adjustable torque arm replaces the flimsy factory stamped steel piece, providing a more durable, structured support between the transmission and rear axle. Equipped with an adjustable sleeve for precise pinion angle adjustment on vehicles with altered ride heights, the arm includes a high-quality polyurethane bushing for the most responsive handling.

Eibach Coil Springs: Designed to enhance a vehicle's look and handling, these springs are matched to Edelbrock Performer IAS Shocks as part of this "total handling package." Lowered spring heights vary based on application.