Congratulations on the purchase. I have a 2004 3l V6, excellent car. Excuse me, but why are you looking for grease nipples? Surley, they must be there already? Now, If you want to change them, that's another matter. I recommend 45 degrees nipples, much easier to access. And get a Wanner swiss made grease gun. They are discontinued, but plenty on ebay. Depending on the year your car is from, it might be a Devol car, as explained in John V6' GoMog link. If so, as you can see, they need a little more attention. Mine is Devol, now 35000 km without problems and no signs of kingpin or (Devol) bushing wear. Greasing regularly, though. Aprox. every 1500 km, and a couple of shots before each long trip.