Nice write up Kevin. I just repaired mine, took less than a hour. My only suggestion would be not to use channel locks. Tried them, it came off after several attempts, but putting back on was problematic. I used a set of long nose needle pliers. Was way easier. There are 2 notches (at least on my '90) on the retaining ring, just hold the trim piece, open the pliers and put them in each notch, and turn. Obviously the pliers need to be longer than the cylinder.
