Bill- The return spring you see there is about 3/8" in diameter, but real long. I made a small steel tab that bolts to the bellhousing and has a small hole in it to attach the anchor end of the spring to. The other end hooks right to the bellcrank. I also have a second spring running straight down and hooking to the pan rail. Overkill, but I learned from race cars to always run 2 return springs. It keeps life boring if one breaks or slips off.
