Alternator replacement

[cudamadd]

1970 Alternator 340 it has the square back look is this correct ? Just trying to collect items now. Before parts keep on going  up in price.  :The car is an auto 727 ,The Alternator has twin pulleys would this be correct ? Car is not an air condition car. I am trying to go as factory as possible Thank you everyone .

[R/T's 4 R/P]

No alternators in 1970 had the square back, that I am aware of.
You are looking for a round back.
Sorry, can't recall the pn at this time if you want to get that detailed.

[Skdmark]

1970 340 Auto without AC
Sounds like a 3438172 round back with single groove pulley

[cudamadd]

Cheers Skdmark