I am looking for information on the brackets used as per the subject line. I have Bob Mannel's book that explains the differences and has pics of the brackets. I have not found a set on any reproduction list. There is a guy on eBay with several brackets for sale that he claims came off a 64.5 mustang V8 and even some text claims appropriate for models with A/C, but none match appearance with the brackets shown in Bob Mannel's book. Is there more than one "right" design? Did the design depend on the production location? Any sources of parts known? Am I wasting my time?