I found a pair of these awesome Dia-Compe Grand Compe brakes in the bin at my local co-op. I don't know what year or model in the Grand Compe family they are. A bicycle mechanic helped me put one together and I am using it on the back of my bike. However I have none of the special parts for the front one, and I am trying to fix it on my own in order to replace the standard Dia-Compe on the front of my bike.
This brake seems to require a special bolt for the top that is flat along one side, a special lever (one of which I got with the rear brake), and a barrel for the clamp behind the lever that is flat on both sides with the proper wire bolt and nut. I have not found any of these components at the local co-op when I dug through their bins. Atleast for the top bolt, I was going to do the same thing as on the rear, and sand down a standard adjustment bolt with sand paper on one side. Does anyone have and/or can anyone help me find any of the remaining parts?
I have pictures of what the parts on the rear brake look like for reference.
The front Dia-Compe Grand Compe brake I have with everything missing.
Reference of the rear brake that works.