I installed an older unit in my 69 that I bought from a friend who had it in his 68. There must be a slight change in case design because it was touch and go whether there was going to be enough room to run the ducts behind the radio and by the glove box insert. I tried to use the plastic liner they had but there is no way that was going to fit. It all eventually went in but it's tight. Still haven't charged it up yet because I need to get one hose remade. I used the original center vent as well because I didn't like the look of the one they included. I lost all my install pics when my HD crashed last year.