Rear Air to Shock Coil Spring Conversion Kit Set for Buick Lucerne Cadillac DTS. Sign Up For Newsletter. Rear Air to Shock Coil Spring Conversion Kit Set. Air to Coil Spring Conversion Kit. 13.7 in / 348 mm. Compressed Bumper Stop Included. Extended Bump Stop Included. Strut & Coil Spring Assembly. 2.01 in / 51 mm. ISO / IATF 16949 certified, direct fit and made from high quality materials to meet orginal specifications. Built to last – coated with an anti-corrosion finish to prevent rust build-up for a longer life. A more conventional and reliable system when compared to air suspension. Hassle-free installation – no complex tools or modification required. Rework your air suspension into a more reliable coil spring suspension with our no-hassle kit. A coil spring system is designed to maintain your vehicle’s height at an optimal level to provide superior performance. Professional Installation is Highly Recommended. At AutoShack, we offer exceptional and fast service to ensure you get the right parts as quick as possible. If you have any questions regarding out parts and services, please ask us a question. We are committed to provide you, our valued customer, with a 100% customer experience. We welcome you to contact our experienced customer service representatives with any questions you may have. Our Knowledgeable Customer Service Representatives Are Ready To Help. Upon receiving your order, inspect all packages thoroughly for missing, damaged, or incorrect parts. Please document any damage, as we will require photos. AutoShack hereby warrants, to the original purchaser, that all auto parts & accessories contained in the original packaging against any defects in material and workmanship. No reimbursements will be given for the delay, labor, mileage, or any other costs involved in the installation or re-installation of the auto parts in question. You may be required to return the part for inspection. We Stand Behind Our Parts With Coverage You Can Count On. OVER 40 YEARS OF SERVICE EXCELLENCE.