1970 Duster Alternator Pulley Alignment

Do you want a completely stock set up, or do you want to make things function with the least cost? As long as the three pulleys in your system align and you can effectively tighten the belt your current situation is fine. If it works, go on a hunt for a correct set of pulleys and brackets for a non-AC car at a bargain price and swap it over later. If you want it stock and want it now buy the repop pulleys and brackets and swap to a single pulley alternator. The single pulley groove is not the same distance from the front of the alternator as either of the double grooves...