Squareback vs round back alternator?

Thats one messed up alternator. Lucky it made it that far.
Next one you buy, try to get a regular squareback, not a revised one like you've got there.
The rear bearing should be flush or a little proud of the casting.
The output stud MUST have an insulator and MUST not be loose.

Identifying Chrysler Alternators (1960-1976)

good to know! I pulled the insulator off when I yanked it out, unsure if the new one would have one or not. I’ll check out the bearing when I pick up the new one this week. Thank you.