Charging problems 67 Barracuda

Sure, post up your meter brand and model, so we can help you get it "set" correctly.

The thing is you need to be careful and deliberate measuring a low resistance, because you are trying to decide between "zero" and "only a little bit" that is only a few ohms. I don't recall exactly what field resistance is, maybe, 2--4 ohms or so. If either of them is grounded, the reading should be nearly zero

This is complicated by bad connections at the probes, corrosion at the connection, and what is called "lead resistance" that is resistance in the test leads of the meter. Some meters (fluke) have a function that "zeros out" the test leads.

You probably should either remove the alternator, or at least swing it out on the adjuster and try to get a better photo, maybe we can tell by looking