Large internal working area helps reduce stress and fatigue for component durability Enhance your vehicle's suspension system with this premium monotube shock absorber from ACDelco Specialty. Designed to provide superior protection and durability, this shock absorber is perfect for those who want to upgrade their car's performance ACDelco Specialty Premium Monotube Shocks are designed to meet the demands of sport utility vehicles, 4x4s and light-duty trucks, which require greater control, handling, safety, and performance. ACDelco GM Original Equipment 540-311 (15943270) Premium Improved Handling Shock AC Delco Premium Monotube Rear Shock Absorber - 540-632 Premium Monotube Shock Larger 1-13/16 inch (46mm) bore size allows the shock to react quickly to bumps and other road imperfections ACDelco 540-203 - Premium Monotube Rear Shock Absorber Single tube and multi-stage sealing design minimizes chamber temperature and debris entry for longer lasting performance These premium shocks feature consistent damping and rapid response characteristics, large chromed piston rods, high pressure nitrogen gas up to 275 psi, and a single tube design.
