A repop outside mirror for a 68 Roadrunner (easiest search) is about the same as far as I know. The difference is the inside control. I'm not sure what year that got changed, but IMHO, there's no reason why it wouldn't work. The inside control would have a slightly different appearance though. It's smaller in diameter and you don't take it apart it to put it in the door.Thanks for these pics. Always wondered what the Mopar remote looked like, since I was familiar with the Ford product. Have you seen any of these for sale I might be able to restore and install in my Fury?
I have both style inside controls here and I'll take a "side by side" comparison pic later tonight or tomorrow.
The right side, non remote, matching mirror is also available as a reproduction.
1966 - 1976 Dodge Plymouth A & B Body Left Round Remote Mirror NEW 641871984336 | eBay
Mopar Remote Match RH Mirror 67-76 A-Body 67-70 B-Body Dart Demon Charger NEW | eBay
Do some searching and get the best deal.