Chrysler assembly line workers!

This may be a little off topic for this thread, but unlike today, didn't they concurrently run several different models through the same assembly line back in the day? So as a line worker you may be installing things on a string of Barracudas then the next time you turn around there is a Challenger there before you. Guess the line moved slow enough so that you could see what was coming next to make sure you grabbed the right part for it. Or did they sequence the different models somehow? Like running the different models on different days, or shifts? Curious as to how that worked out.