I did both driver and passenger side valve cover pvc valves. They werenâ€™t to hard to get out my truck has almost 200k on it. I did use some petroleum jelly to hold the new screws onto the screw driver. Be very careful when u remove the old valves the spring is under the rubber piece and it can fall into the valve cover. If the cover plate is stuck on the valve cover thread one bolt in and take a flathead and a hammer and give it a light love tap to break it free.