I need a build date for a 1966 Mustang convertible because the metal door tag has been removed and misplaced. Can anyone give me a reliable Build Date on a VIN of 6F08C390524 that appears on the left front fender apron? Any assistance would be appreciated. Thanks.
Hi again. You are too kind. It isn't that I'm any more knowledgeable than any one else, it's just that I know how to write a vin on a blue oval with a running pony on it, mumble a couple things, and throw some chicken bones on it. They fall arranged in the scheduled production date of the car. That also works for rust bucket? yes/no, 6 cyl car posing as K code, all sorts of useful information.
Veronica Compare the VIN number on this 1966 Mustang Coupe being auctioned on EBay (Item 280295725437) with the VIN on my 1966 Mustang convertible. The production number on the convertible is 390524 and on the Coupe is 390236…a 288 unit difference.
vin 6F07T390236 65A F 22 21F 25 2 6 mileage 35361 this is an all numbers matching car
21F means June 21 (1966)
Assuming that info is correct, would 288 units greater take my '66 Stang convertible's production date more into the end of June 1966?
Hi again. That's why I said 'about 18F' . That car ( the one on ebay)is a little bit out of sequence with the cars that I have the data on, but not much., I have the data on a couple of cars that are a little bit in front of yours by 70 or so and one is 18F and the other is 17F, and a car right behind yours by about 250, and it's 19F, so, I just sort of stuck yours in the middle of them, but, that's just a 'best guess'. It could certainly be off by a day or two. Or even three.
I don't know how much overtime they were working to churn out the Mustangs in June 66 but consider that 18 June was a Saturday, 19 June a Sunday, etc. The 17th and the 20th were much closer together than they look unless they were working 3 full shifts, 7 days a week.
Thanks Veronica and Ivy66GT. Wish Ford would have preserved its production records for 1966. Not knowing my Stang's actual birthday is a little distressing.
Hi again. That's one of the problems on these cars. The best that can be determined is a guess that is within a couple of days of what the scheduled production date would have been if it rolled out in sequence. And there is that weekend thing. I normally check that on a calender, but, I must confess that this time I did not, and apparently I have a couple of cars that have some weirdness going on that were built at about the same time as yours. Sorry about that, my bad. If it was my car, I would go with 20F. That's the Monday of that week.
But, even with the original door tag, window sticker and build sheet, you can't know when the car actually was completed. That would help out a bunch on narrowing it down, but, they were running behind by quite a bit on these cars. None of them were built on the scheduled production date on the door tag. But, knowing within a spread of a couple of days what the door tag date would have been will help you on knowing which parts you would need when something was changed in mid-year, which options were actually available at the time that your car was built, etc.. Knowing within a couple of days is much better than knowing within a couple of months.
Looking at my book the cars around that VIN have dates from 17F-22F, with most around 21F, right where Veronica put it. Since the cars weren't always built in order (VIN wise) it does vary.
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1968 Mustang coupe, Acapulco Blue, 289 2v, C-4, Power Steering.
Hopefully a 1969 convertible or Sportsroof (non Mach or Boss) for next Mustang project
Trying to find my father's 1973 Mustang Grande he bought brand new. 3F04F126773 last known registration and title was in New Jersey, 1982.
Thanks again Veronica and also Jay for approx. June birthday info on my '66 Stang vert. Maybe I'll get lucky and find the metal data door tag and/or buck tag. If I am really super duper lucky, I'll find the Build Sheet under the carpet or up underneath the dash. Most everything about the car appears to be original and in solid condition with no rust issues. Only a singular small patch in one of the floor pans. Even the dash pad is in marvelous condition and appears original. The previous owner (now deceased) kept this Stang garaged. Unfortunately it's been much too cold and windy lately--Chicago Bears Solider Field type cold- to do much searching.
Hi again. That's one of the problems on these cars. The best that can be determined is a guess that is within a couple of days of what the scheduled production date would have been if it rolled out in sequence. And there is that weekend thing. I normally check that on a calender, but, I must confess that this time I did not, and apparently I have a couple of cars that have some weirdness going on that were built at about the same time as yours. Sorry about that, my bad. If it was my car, I would go with 20F. That's the Monday of that week.
But, even with the original door tag, window sticker and build sheet, you can't know when the car actually was completed. That would help out a bunch on narrowing it down, but, they were running behind by quite a bit on these cars. None of them were built on the scheduled production date on the door tag. But, knowing within a spread of a couple of days what the door tag date would have been will help you on knowing which parts you would need when something was changed in mid-year, which options were actually available at the time that your car was built, etc.. Knowing within a couple of days is much better than knowing within a couple of months.
Veronica
Here is another 1966 Stang convertible (supposedly a GT) being auctioned on EBay..Item 230314855177. Check out what the door data tag allegedly says (17J) with the VIN number 6F08A115126. Can this be real? DOOR TAG INFO: VIN: 6F08A115126..................BODY STYLE: 76B..................COLOR: "V" (Emberglo)...................... TRIM: F4 (Parchment w/Emberglo trim Pony).........DATE: 17J.........DSO: 45...........AXLE: 1........... TRANS.: 5 (4 speed manual)
Hi again. On that convertible, the date is about right for that VIN, but, there are some problems with that ' heavily optioned' thing. The p/s foglight wire hole in the radiator core support is in the wrong place, and, while it is possible that the A/C is dealer installed, it isn't factory installed. I didn't see a picture of the door tag, so I couldn't say if it's a reproduction or not. To be a factory GT in 66 the car had to be either an 'A' code or a 'K' code, so that doesn't disqualify it, but, there aren't any pictures of the floor where it matters to see if its a GT or not, so, without going and actually looking at the car in person, it would be best to assume that this is a pretty straight 'A' code convertible with a ratty-looking engine bay and a bunch of stuff bolted onto it. There just isn't enough information available from the pictures to say any more than that about it. Hope that helps.
Need Build Date for 1966 Mustang Convertible 
Your car's build date would be about 18F, or, June 18th. Hope that helps.
It isn't that I'm any more knowledgeable than any one else, it's just that I know how to write a vin on a blue oval with a running pony on it, mumble a couple things, and throw some chicken bones on it. They fall arranged in the scheduled production date of the car. That also works for rust bucket? yes/no, 6 cyl car posing as K code, all sorts of useful information. 
