I am Detroit - Historical video, shows Dusters being built on the line.

Another thing to look at is American car makers are making less sedans because the foreign cars have taken over that market. Ram & Jeep are keeping Chrysler afloat. The Challenger is only pocket change. Every Mopar I've bought has been back to the Dealer for problems, 68 Road Runner, 71 340 Duster, 75 Cordoba, 83 Town & country, 05 Ram & 2010 SRT. I am now a Honda owner for ever. Although I still have the Ram & the SRT.
I am curious what problems you had with the 71 Duster 340 and would love to hear more since you were an original owner. My grandfather bought a 76 Cordoba that he ordered and when it came in it was missing half of the screws on the taillights and the sales person tried to tell him it was no big deal lol. He made them take screws off another car before he would take delivery.