They fit perfect to my 1971 Cougar easy to install and good directions how to put it in

Hydraulic Cylinder - Convertible Top - Passenger Side - Repro ~ 1971 - 1973 Mercury Cougar

I watched a couple of YouTube videos and was able replace the original cylinder with little difficulty using little more than my rather basic toolkit. I am rather new to the "do it yourself" approach to car repair, so I can say with certainty, "If I can do it, you can do it!"