I’ve swapped out the voltage regulator and an alternator from O’Reillys. I know that alternators remanufactured in China showing up DOA out of the box is not uncommon With this new remanufactured alternator if I put my multimeter on the battery terminal of the alternator with the other lead to battery ground I don’t get more than 12.6 V. Same result with the negative lead on the multimeter touching the frame of the car. I can’t think of anything as far as a ground problem, or any other explanation other than bad alternator, is there anything else that could cause a lack of charging voltage? The alternator gauge in the car is functioning, and I have never seen it go into the positive only into the negative or discharge.