I am in the same situation as Steve. Can't get to my boat. I know the shaft is 1", but are the other measurements the same ? I have a 1985, and I don't know if the measurements changed after that year. I have a Universal 25 and am looking at a very short schedule between doing the engine work and launch. As the boat is 170 miles away, I can only go up on weekends, so I want to get the necessary parts and have them ready to go. This forum is a great resource, and every body is so helpful !! I hope that someday I will be able to assist someone with a question.