School me on 68 dart parts

As mentioned, there are specific one year only pieces but there are more that interchange (some with a little massaging) than do not (especially if you are not a stickler for correctness).

I know you are a couple of years away from buying one but it is good to familiarize yourself with the ins/outs and pros/cons. Also, knowing what options/accessories you want before buying is smart thing to do. For example, if you do not need buckets with a center console, you will have an easier time finding one. If you are not looking for a factory hi-po model, again, you will have an easier time. Good luck with your information search.