I bet it is ball joint style.........mine is out of a 90 F-350 and it is ball joint.
......the only problem i ran into was trying to do High steering set up......You don't have the ability of buying the arms that replace the king pin cover.....I had to build my own.........drill and tap the knuckle but other than that I have not had a problem with it........it is worth just as much $$$ as a king pin. Since it is High Pinion they are wanted badly!!