Decaying connections

Time to solder new terminals. Green wire should take a female Packard 56 terminal. Not sure you need the main power cover but connection will be exposed to say accidently hitting with a wrench or screw driver while working on your car. You can replace it and solder a new ring terminal.
25 56 Series Terminals 16-14 Gauge Female Compatible With GM 2965142 | eBay
Alternator Hot Wire Insulator Fits Dart Charger RoadRunner Duster Cuda GTX Mopar | eBay