Probably one of the last 1975 Dart Swingers produced

Alaskan_TA said
1975 Hamtramk production VINs ran into at least the 3955xx range.

Model years from 1972 on ran longer than from 1971 back.

Interesting! So the early August to mid-July was primarily a '72 and earlier thing?

If they ran the VIN's out to 3955xx range then they still made more than a couple of '75's after this one.