This was an exact OEM replacement for the rear shock on my 2000 Subaru Outback. The factory original KYB shocks that I removed have done nearly 200,000 miles and lost most of their damping ability. These new ones have made a noticeable difference in driving and I am very happy with them. I'm always happy when I can find and install the perfect factory genuine part in my cars. Please note that the kit does not include anything other than a bare shock and top nut. I rearranged my original springs and bought new KYB boots. My boots got mixed up during salvage as they are quite tight. I also replaced the upper shocks which after 200,000 miles I thought was a good idea.