I ordered the dampener, bracket, picked up a M5 screw for the bracket (Confirming M5 for the bottom bracket?), a 60mm M5 screw, washers, nuts. Last thing I need is the 7.9mm OD Aluminum sleeves. I found local manufacturer who sells them threaded for M5 screws. Big question, how many aluminum sleeves did you use, and what were their lengths?