The Vevor rear air shock absorber strut set is designed to restore ride comfort, handling, and suspension stability on compatible Cadillac, Chevrolet, and GMC vehicles with Z55 Autoride. Built with high-strength rubber air springs and durable steel construction, these rear struts help absorb road impacts for a smoother driving experience. A rust-resistant coating helps protect against wear in varied road and weather conditions. The direct-fit design is intended as a replacement for multiple OEM part numbers. Professional installation is recommended.