5 days ago I just replaced my alternator (again) with a 124 amp unit for a Caprice. Its charging just fine and runs great during the day. While driving at night and with the headlights on I get really short flickering from volt light only. No power surges, dimming of lights, or stereo cutting when this happens. Im gonna check all the wires and grounds but I wanted to know what else can cause this to occur.