After owning so many 71-X's and all having full tops, I was told you coudn't get a 1/2 top on an X. Wrong..wrong..wrong. I ran across a couple of them and one was an original owner car that was built late.

High Performance Mopar magazine had on going segments called 'broadcast news'. When they did the story on the 71-plymouth B-body's, they had the info on the 1/2 top. If I could find that issue, I could tell the date it started production.