The general gist of what this thread has devolved to is that the Ford Motor Company was in a constant state of chaos (that's for another forum). The simple matter is that Ford Motor was in the business of building and selling cars (mostly), and selling cars to customers that may or may not have been upset with a delivery slippage (that topic too, is for another forum). We get examples of actual vs scheduled build dates from available data, mostly from 1967 and forward cars, from "clues" marked on 1966 and earlier cars (a remaining battery test stamp date has to be the best so far), permanently stamped dates on metal is another (both hood hinges on my 65 are late April for a May build), but without a build sheet or data base, no one really knows for sure. Ford made about 2 1/2 million Fords in 1965, add another million Lincolns and Mercurys, plus another million trucks and that gets real close to five million units. If one percent got a delay (read schedule deviation) that would be 50,000 units. That would attract management's attention (ask me how I know). If 5 percent of the scheduled units fell behind that comes out to a quarter million units. No company could survive that (Ford closed at $14.11 Friday). We get the "may have", "could have" or another phrase about differences between scheduled (door data tag date) vs actual build dates of days and weeks portrayed as the norm. There are some in the months range as well. They exist, I do not doubt or dispute those dates. My point: more cars were built within a two day period of their scheduled build date than not. How many remains to be seen. Using 1967 data to make that determination might reveal an interesting "Bell Curve".
Jim