I have a live PTO on my 400 and an oil drip from my PTO actuating lever shaft. I'm pretty sure it is the original but not positive. Is the old seal much thicker and built like a tank? My buddy ran into this with his M. The original PTO shaft seal was cylindrical , where as the replacement was thin. Is this smaller PTO seal I am working with similar? I could not get it to come out. So of course now I have it all buggered up so there is no turning back! Is there a pulling tool or method that someone could help me with? I bought the new seal from a CIH dealership so I know it is the correct one. Thanks!