[cadtech]

I have a 67 GTO. Would any one know where I can find the correct clamp that attaches to the left rear upper spring perch and holds the fuel supply and return lines to the frame? I am having the hardest time finding the correct clamp. I found one that holds both steel lines but has the wrong size hole. The original clamp is held in place with a small self tapping or metal screw with a 1/4" or 5/16" hex head. With all the corrosion it is hard to tell the exact size.