The Bilstein B6 46mm Monotube Shock Absorber is a performance upgrade to OE standards for light trucks and SUVs. Specifically designed for the GMC Sierra 2500 HD, it provides improved handling and stability without sacrificing ride comfort. Key features include: 46mm monotube design for consistent, fade-free performance; nitrogen gas pressure technology; vehicle-specific valve settings. This product is a single unit. Included in the box: 1x Shock Absorber (Part Number: 24-060820), Mounting Hardware (Washer, Bushing, Nut).