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Don't know what you have however early spring perches have fine threads and the bushings do not have the crimped tabs.All of the Ford service perches typically have the tabs and course threads. At least the ones made after 1967 typically do.Quite possible yours are all 65-67 early parts
Thanks for clarifying Bob. My perches as per the photos have the tabs and I have both fine thread and coarse thread nuts and bolt from a few different sets I found. I am nit sure if the bushings need to be changed or not, but if those bushing are correct I would use them as they are local. Otherwise the hunt continues...
The course thread bolts and the bushings with the tabs are most typical and that is what i would aim for IMO. The bushing in your picture without studying it too much most likely can be manipulated to have the crimped tabs but it is time consuming and difficult. Many used ones still have usable bushings. Sometimes you can even trim the outer edge of the rubber that is cracked on a otherwise ugly bushing to reveal a inner surface that is not cracked.
They don't look too bad. You might be able to use a dremel and blend in the surface area better to hide the trimming marks and make them look even better.