Changing the rear quarters on my Dart conv. from a 69 to a 70

I saw a yellow 1970 Dart convertible, in I think Kitchener Ontario, in the late 70's or early 80's. I still remember that car.
The Canadian market had a few things a bit different than we did in the States.
Didn't you guys get a GT model in 1970 and 71?
I've never seen a Dart convertible past the 1969 model in the States. It is my understanding that none were built for the US market.