Can you ID this alternator?

Dana67Dart said
Dang you have a corrosive environment.

Ok
If you buy an alternator for your car model and year.

You will most likely get a square back alt that has one of the field terminals snipped off. It is internally grounded to work with your 67 style voltage regulator. Single field wire round back rebuilt alternators are few and far between.

As for what's at fault...

Since the alt is out might as well have it tested.

The 11 volts into the VR is low unless that is battery voltage as well.

The 2v out probably is not right, but without the load of the field I could not say for sure.

I would work on your grounds, with that much corrosion you might just have a bad ground issue.

The voltage readings were taken after I installed a new alternator yesterday and temporarily grounded the second FLD terminal. I spent half an hour cleaning the firewall beneath the VR to ensure a good ground.