The Rancho Adjustable Control Arm Upgrade Kits are designed to fit stock or lifted Jeeps. The control arms, which are covered by a limited lifetime warranty, are constructed from heavy duty, .188 DOM wall tubing for improved strength, and feature forged ends. Each control arm includes Rancho’s D2 Synthetic high-articulation bushings that self-center and are grease free. Each upgrade kit includes highly detailed, full-color product installation instructions and are sold in pairs by axle.