Well this morning one of the two springs on my 12'x10' shop door let go. Now it requires two people to open it. This door is 40 years old and heavy as hell. Called local HH to price out a new one, this will be an expense i hadn't planned on. Back before xmas i talked to a local contractor about a remote opener for this door and he said no go. This style of door with the springs over head on the ceiling isn't used anymore. I can't find the book for the door so no idea of make or model either.