Ok so I got the washers identified. Anyone know about the ferrules? I remember when I was purchasing the group one lever still had a shift cable running through it and the guy mentioned he had left it in because that shifter was tricky or something to that effect? Of course, I just pulled the cable out and heard something drop, and, of course, I can't remember what it was or where it came from because I just stuck it in the bag of parts. Could they be part of the levers?

And s for the stepped ferrule, I guess that is just extra and necessary for certain chainstay fitting?