I just replaced the PTO seal on my 8N , and the job went smoothly. I removed the old seal, that was very well worn, and it was made differently than the new seal. It had the spring an rubber seal an a felt washer seal that was made in a metal case. The felt was to the rear of the rubber when on the shaft and acted as a wiper for dust and dirt to help protect the rubber from damage from dirt and weeds/grass that wrap up on the shaft while in use. Has anyone had or know if a seal made like this that is made ? I would like to use that seal if I ever have to replace one again. I looked for numbers on it and all I could make out was the Ford logo on it.