[santa]

The first one with the grinding 3/4 has a broken shift fork. That's very common, I have broken my fair share of those. The 2nd one... If the center diff is welded the viscous has no purpous besides holding the transsfercase output shaft in place with a small check ball. I think I actually worked on that transmission before. I remember that it needed to be removed to further diag what was wrong with it.