Well you have the picture (diagram) showing the position, all you need to do is figure out the order..I have done it many times and can do it now, but not sure I can explain it..As you go if you make a mistake it will dawn on you that you proceeded in the wrong order, so back up, correct it and do it again. thats what I did in the beginning..fortunatly the 99s are a snap to figure out once you get inside and if your the one that took it apart.