Car ID

What's the source? 340 only? Or 340 4-speed?
Galen's white books.
'72 Duster total 212,331 for all countries
U.S. production was as follows:
198 slant 6 was 17,165
225 slant 6 was 131,520
318 v8 was 44,479

Duster 340 was 15,681 total for all countries
U.S. production was as follows:
13,802 all
3 speed was 2,401
4 speed was 2,871
Auto was 8,530
Sunroof 340 with all transmissions was 41

I hope that this answers your questions.........