1 of 51 ! can it be possible :

Your also assuming there was any difference between US and Canadian "spec" cars back then .We drive on the same side if the road and the metric system ,and emission rules didn't come in till much later in the 70s so other than Canadian named models which the Duster isn't there probably wasn't any differences in 1970 . Oh and if your obsessed with minutia if the car was built here it wasn't "shipped" to here , the balance of the production run are actually "American Shipped" Dusters . Now back to counting belly button lint .