To an untrained eye, classic Ford Mustangs from the mid to late 1960s may not appear to have many differences distinguishing them from one another. Upon closer inspection, there are a few factors that make it easy to quickly identify the model year.

The very fist production mustang was officially called a 1964 1/2, because it was produced halfway through the production year. You can tell a 1964 mustang from the 1965 mustang because of some small differences;
Differences between ’64 1/2 and ’65:
- The headlight extensions on a 1964 1/2 had a beveled edge, which was eliminated for the 1965 year.
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The lettering on the hood that says “MUSTANG” was a little shorter, 4 3/8″ instead of 5″ on the ’65’s.
The difference between a ’65 and a ’66 is a little easier to distinguish.
- The grille on a ’65 will have vertical bars, and the ’66 grille will not have them (except GTs).
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The side scoops on the ’65 have have a single scoop, while the ’66 has 3 horizontal trim pieces along the scoop.
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Stock hubcaps were also different for both years.
The ’66 and the ’67 is easier yet to tell apart.
- The body of the ’67 mustang is an inch and a half wider and two inched longer than the ’66. The hood, grille, bumpers, and taillights are all different on the ’67.
A ’67 and a ’68 have a lot in common, but you can tell the difference because of two very obvious difference. The ’67 has two plastic inserts in the side scoops, and the ’68 eliminated them both.
And, the ’68 mustang has rear and front fender reflectors that were a part of the body of the car.
These are the main differences between the early classic Mustangs. Do you know of any other differences?

27 Comments
Jeff Davis
260 v-8 and 170 6cyl. were only available before 1966.
Austin Cohen
are there more articles like this about the first generation mustangs? possibly with more detail?
Carter Custom Rides
No doubt about it!!
Keith Terry
yeah i can tell the differences
El Mas Chingon Lxs
Ooooh yeah!!! 64 1/2 Mustangs had different window crank handles, 64-65s had a sweep dash whereas the 66s had the three “gauge pods”, 64/65 hubcaps were different (66 hubcaps had a “star” look to them), 64/65s’ side fender had a chrome strip in front of the rear tire whereas the 66s had two chrome “strips” that extended forward, 66s had reverse lights (I *think* it may have been an option for ’65, don’t remember), 64/65 front grill had the chrome slats/arms that extended outward from the corral and pony whereas the 66s had a “floating” corral and pony (exception to 66s were ones that had the “GT” upgrade option), 64/65s had a black shiny gas cap with a pony in the center whereas the 66s had a plain solid chrome gas cap! That’s about all that I can remember at the moment…..I know there’s more that I’m missing but can’t recall 🙁 Then again, it’s been a good 10 years or so that I haven’t been in the 64-66 Mustangs scene 🙁 I’m pretty sure there was a difference in the interiors as well! lol 😀