I believe it must be in late 67 production that the individual boots changed because every 67 Shelby that I have observed over the passed 40 + years that still had original wiring had the individual boots. That would seem to indicate the changed happened at least on SJ cars sometime in July 67 or after.
Bob : This is good to know. It just shows another case where one cannot go by the dates on "superseded drawings" as being when they were actually put into effect. In this case, the date on the AM drawing (E7-8601-2) of 10/14/66, which shows the one piece rubber connector, clearly does not indicate that this change was made then, but at least after July of 1967, and possibly not until the 1968 Models. This same occurrence also seems to be the case in regard to the 1967 Low Fuel Proof Wire for the Safety Convenience system, which is shown on AM drawing E7-8618-3, dated 1/16/67, as going from the firewall, along the RH , firewall to fender support, and then to the starter solenoid. While the 68 Models did follow this routing, at least so far, we have no confirmation that 1967's after 1/16/67 had this routing.
Save all the dialect and go to the 67 Electrical Assy manual, page 54 (E7-8617-1)
Whoever says there are no Ford drawings for the Tach type alternator (and cluster) could be incorrectRichard : Yes, I am the "whoever" (where is that foot in mouth emoji), as while I did look a few pages before and after page 33, I, like Bill, never thought to look 21 pages ahead ! Good find.
It may be that early non-tach cars had the 2 boots (BAT and FLD) and later had the 1 piece connector with caps. Perhaps the latest 1 piece connector version is what is shown on page 33 of the Electrical Assembly Manual after it superseded the boot vertsion.
Page 54 shows only the Tach alternator wiring and 3 boots -- it does not show a 1 piece connector version.
Makes me wonder if a 1 piece (BAT and FLD) connector with a lone STA wire even exists? Bill : Yes, both John's and my original harnesses had the two boos plus a sinle wire with no boot for the stator.
As far as a single rubber two connector harness with a separate non-booted wire for the stator, I believe that that harness was what started me on this thread. I found a NOS C7ZZ-14305-B harness (pictures attached - you'll need to zoom in on the harness) was nothing like my original. It is my belief that it is a later Service Replacement harness, which was also used for 68's which is why we find this is what the Mustang Suppliers are getting from their Vendors. Which is why I had to end up having mine "custom made".
Thanks for bringing this back to "light" to add more "fuel to the fire".
Bob