Topic: What constiutes early or late in a production year

[RocketScientist]

In terms of the normal yearly Mustang production cycle what in what months would a car be considered an early build and what months be regarded a late build?
Was it that simple?
Thanks,
Brad.

[CharlesTurner]

First few months are early, last few months are late.  Just a general term since a lot of changes could span early, middle or late during one model year.

[J_Speegle]

First few months are early, last few months are late.  Just a general term since a lot of changes could span early, middle or late during one model year.

+1

Might describe it as the first three and the last three

[midlife]

In 1966, early and late are sometimes decided by March 16, when there was a change-over in wiring harnesses and the emergency switch connectors.
In 1965, early and late are sometimes differentiated by how the heater boxes/resistor packs were set up; I believe the change-over was about the time that the GT's were introduced (March sales but February builds).

[cobraboy]

In 1966, early and late are sometimes decided by March 16, when there was a change-over in wiring harnesses and the emergency switch connectors.
In 1965, early and late are sometimes differentiated by how the heater boxes/resistor packs were set up; I believe the change-over was about the time that the GT's were introduced (March sales but February builds).

Interesting, so my April GT with a resistor in the heater box is a late car ?

[midlife]

Interesting, so my April GT with a resistor in the heater box is a late car ?

From an electrical point of view, yes.

[CharlesTurner]

Gets even more crazy around that time period as even Ford documentation makes reference of "1965 1/2" models...

[cobraboy]

From an electrical point of view, yes.

Thank you
Mark

[lscman]

I'm not really sure what makes a half year 65 but I've had 5 of them and everyone of those I had didn't have any chrome on the side of the quarter panel.There might have been some other small differences but that was the one that stands out the most for me.

[CharlesTurner]

Most of the "1965 1/2" models reference I have seen in Ford docs was related to the deluxe interior and GT equipment option.

As far as the quarter emblem being missing, that's just a regular production option, called the Accent Group.  Included deletion of quarter ornament on coupes and convertibles, rocker panel moldings installed (coupes/convertibles) and a thin painted accent stripe along the body lines.

[midlife]

Quarter emblem is also deleted for all GT's.

[hughnews1]

I just sold a coupe here in FL  birthday was  aug 14 1967  late huh

[bryancobb]

In 1966, early and late are sometimes decided by March 16, when there was a change-over in wiring harnesses and the emergency switch connectors.
In 1965, early and late are sometimes differentiated by how the heater boxes/resistor packs were set up; I believe the change-over was about the time that the GT's were introduced (March sales but February builds).

So on my signature car, the SCHED build date was MAR 15.  I Thinkk it was actually built on the 17th??  What do I need to now about wiring?

[Jays66gt]

So when did production start for each model year 1964 to 1966?

[midlife]

So on my signature car, the SCHED build date was MAR 15.  I Thinkk it was actually built on the 17th??  What do I need to now about wiring?

You could probably go with either system.  I would imagine that there was a short period for transitioning the wiring.