Alternator question

It looks like my alternator was painted black on the back half, and unfinished aluminum on the front half. Has anyone seen this before, and is that the correct color pattern for my car, 69 Dart swinger 340.

Also, when I bolt it onto the brackets and tighten them, the alternator stops spinning. can anyone post a picture of their alternator with the metal tube spacers on the upper mount so I can see what it should look like. I have all the correct bolts and spacers, just cant get them to fit properly.


Thanks