Voltage Regulator

Today at work, I was thinking about the connector at the voltage regulator. Ill take it apart and clean it. I can swap batteries as well.
I agree, dont want to just throw parts at it..... But I think one of the local auto parts stores can test regulators off the truck.

Before I do anything else, I will take the truck for a drive, and then re-check the readings, starting with the battery at idle.
Thanks again!