Dodge Lancer Voltage regulator
The question, tho is how stock do you want it, and how old and beat is your OEM alternator? If it is coming maybe close to have lived it's days, consider getting an alternator for about a 74 Dart, which is the more modern "squareback" and has two field terminals. Buy the regulator for the same year, and you only have to add one more wire to wire it up as a 70/ later setup. You will need the connector / pigtail to fit the VR.