I took everything apart and cleaned all the crap off. There was a lot of it. A bunch of black sludge with metal particles at the bottom. The bushings were pretty much worn out and the lower bushings had metal embedded in the remaining plastic coating. The metal came from the inside of the fork pipe (long steel chromed steel tube) where the damping cylinder bushing runs. The inside of the pipe has some abrasion where the metal came from. The damping cylinder bushing had a lot of metal embedded in it. Is this a problem? The piston and the other parts look good. I'm planning replacing all the bushings and the seals. Is there anything else that I should be looking for, checking, or replacing?