This high-quality rear shock absorber from Motorcraft is a must-have for your Ford F450 or F550. Made of durable alloy steel and featuring a hydraulic fluid shock absorber type, it ensures smooth rides every time. The shock absorber is easy to replace and boasts 100% accuracy of fit, making it a reliable choice for your vehicle's suspension system. It comes with a screw-on mounting style and is designed to fit on the rear left or right of your vehicle. This item includes a shock and is sold as a new old stock (NOS) item. The manufacturer part number is AU2Z-18V125-BE, and the OE/OEM part number is the same. Buy with confidence and get your vehicle back to its smooth ride with this Motorcraft shock absorber.