What year parts fit 68 Dart?

[csx452]

I have a 68 Dart GT that was a factory air car. The heater box and switches are all that is left in it? Can anyone tell me what other years parts will fit? I'll need everything underhood, and the under dash vent setup.
Thanks,
Frank

 

[GTXperience]

There was a local ad on Craigslist for the past few weeks where someone was selling a complete AC system out of a 68/69 Dart. I just checked and didn't see it listed but will keep an eye out to see if he relists it.

 

[csx452]

Thanks. I appreciate that. It would be nice to cruise in comfort.
Frank