I am rebuilding my rear brakes on the 70 and the spring was broken when it came out. Looked on-line and there is no real good info out there. Dealer said buy the kit for $30. I don't need nor trust "kit" parts for brakes and I just needed the one spring. I found this and it fits perfect. Costs $1.47 (+$3 for shipping) at Rockauto. So I'm posting the info in case someone else runs into the same problem. The black one is the old one: Part number is Raybestos H1341-2 (H1341 at the Rock)