dart sport production

I am new to the site, and this may be the wrong spot to post this question, but here goes.

I am looking at a 73 dart sport 340 with a 3 speed floor shift trans. Are there any production numbers on 340's with the 3 speed trans? I know the numbers for the dart sport, but I figured someone on here would have some info on the 3 speed manual trans option. I would think it would be fairly unusual on a 340 car.

Thanks.