Unless you have modified ball joints, the originals were "greased for life" and without nipples, then the only grease points I know of are on the prop shafts.
Once again it depends on the level of modification, but there should be one on each U/J and one on each sliding joint. If a modified front prop shaft has been fitted then there might also be another two on the double cardon joint at the transfer box end.
Of course there are also bits and pieces which might require a smear of grease too.