My 1965 galaxie 500
Having an issue. I just replaced the wiring harness from my alternator to my regulator. I replaced it because I wasn't getting the charge from the alternator to the battery. I checked my alternator and it was putting out between 15 and 17, but I would check at the battery and only getting between 11.7 and 12. My alternator dash light stays on and my gauge (trip gauge) shows less than 12 while running. I've cleaned grounds, double checked connections, and looked over everything 2 or 3 times. Could I have a bad gauge or something under the dash?