Originally Posted by Akadis
Put another way - the balls must be facing each other, bottom facing up and top facing down. Did your new fork have new cones on it? If you are reusing the old cones make sure they are seated as far as they can go. If the old cones have little dents in them then a tiny bit of play is necessary, otherwise get new cones and adjust so there is no play, but the bars and wheel can flop to the side by gravity.
Actually, sch had it right. If you lookfron the top in to the top cupyou will see the balls in the retainer and the cage contacts the bearing cup. So the balls really are facing opposite one another. You way the retainer cage would grind against the crown race and the upper race.