This kit includes rear lower control arms and a single adjustable panhard bar. The control arms feature polyurethane bushings on one end and UMI's spherical Roto-Joint on the other, designed for street performance and enthusiast use. The polyurethane bushings absorb road noise and shock, while the Roto-Joint allows for 28 degrees of total movement, enhancing handling and performance compared to factory rubber and aftermarket bushings. The included panhard bar is crucial for centering the rear end after lowering the vehicle and accommodating larger tires. UMI's Roto-Joint technology provides unrestricted movement and prevents suspension bind, improving traction and reducing wheel hop. Made from 4140 chrome moly material and hard chrome plating, it offers durability and wear resistance. The Roto-Joint is adjustable and fully rebuildable for long-lasting performance.