My other Early A ---65 Dart post
Even the sunvisors are rusted stuck. First I took the staples out to get the cardboard off. Next I took them to the wire wheel on my bench grinder to get the loose stuff off. Then I soaked them in evaporust for a few hours. Eventually the rust gave way and I was able to separate the rod from the flat bracket. The rust is all gone now but the pivots aren't moving easily where it screws to the body. Gonna keep spraying it with penetrant and hope it works loose.