I just replaced the clutch in my model 30 that I picked up this year. I went with a new clutch from jiffy. I figured it was just easier that way and less messing around and hoping the Eskimo springs we're the same. I did read on here that people have used the Eskimo springs and they worked for them. Like I said I replaced the clutch. The new one came assembled so all I had to do was remove the set screw and use a puller to remove the old clutch then put on new clutch and tighten set screw. I placed the new clutch flush on the end of the shaft cause that was where the old clutch was. It was pretty easy. Hope this helps some. If you go with a new one I would just call Jiffy and order it. They have been helpful with any questions I have had.