FYI before ya go out and buy a new alt because you lights are flickering try up grading your grounds. (up grade the stock ground from the battery to the chasse to a 4g, ground from the engine to the chasse 4g, ground from the alt to the chasse 4g) If you look at the stock wire its probabley 8g wire. I have seen the ground from the battery to the chasse at 4g but all the others I just mention are typicaly 8g this is a cheep easy up grade. I'd rather spend 10-15 upgrading my wire before I spend 80+ on an alt, and found out that I still had to upgrade the wire.