We have an original, single piece steel overhead door on our 1960s garage. Recently the bracket attaching the spring to the rest of the door mechanism broke. I called a number of other companies and was told it couldn't be fixed because nobody makes parts anymore. Found John's information on Kijiji and he said he would come see what he could do. He was here within a couple of hours. What he did was find a solution and fix the door. No there wasn't an official replacement part, but he made it work and that's what I needed