Alternator arrived well packaged and in great shape. Alternator was installed and the car was driven maybe 100 miles over the course of 2-3 weeks. Went out to crank the car(1990 Nissan 240sx) and was surprised to have to jump it off(new battery) after jumping off, car was idling rough and totally out of the norm, so we checked voltage to find that it was around 11.2 and falling. Turning on headlights would stall the car. Alternator wound up being defective. It did work for a couple weeks after the initial installation however.