Topic: Different gas cap sizes for Mustang 1966..?

[Josep]

H all,
Sorry for the presumably stupid question but, I ordered from CJ Pony Parts a correct gas cap for my 1966 I6 Coupe and looks a bit bigger than the one it has before, a 65 gas cap model. Maybe just seems so to me.!
Maybe it's the model's effect..
Sure it's the correct one, but wanted to verify.

[CharlesTurner]

65 and 66 caps are different.  65 has plastic center, 66 is all metal.

[Josep]

Yes Charles, I know, I was referring to sizes.

[CharlesTurner]

Yes Charles, I know, I was referring to sizes.

There was not different sizes of gas caps during 65 or 66.

If you're looking at repro parts and comparing, can't help you there.

[Josep]

That's fine Charles, thanks! Size it's the same, just model is confusing my eyes.! I have measured them and they are both the same. 65 model looks smaller because of its design, but just that.

[CharlesTurner]

How the cap attaches to the filler neck is the same, but it would not surprise me if the actual cap dimensions are different from 65 and 66.  I would say 66 might be slightly larger, just based on visual appearance.

[Josep]

That's what I noted Charles.