Upgrade your vehicle's suspension system with the ACDelco 530-311 GM 88945479 Shock Absorber. This high-quality, gas-charged shock is designed to fit perfectly on the left, right, and front side of your Silverado Sierra HD. It comes with mounting hardware and a screw-on mounting style for easy installation. Made of durable steel material, this shock absorber has a travel length of 4.78 inches and a single pipe system. It boasts 100% accuracy of fit and is easy to replace. This OEM shock absorber system is a perfect fit for your vehicle, ensuring a smooth and comfortable ride. Exact item is shown. New with partial original packaging. Includes sealed mounting hardware packet. Made in Mexico. No returns if installed. This item is a new, opened customer return. It has been inspected and passed quality control to insure the condition described and contents are accurate. Please review actual photos as stock photos are not the actual item, our photos are. You will ONLY receive exactly what is shown in photos, regardless of what might have originally been included. Please review our business policies in our store for information regarding returns, shipping and warranties.