drag link

[GloryHound]

I am upgrading from front drum brakes to disc. I have 71/72 spindles, the calipers, and rotors. I am going to buy new tie rod ends both inner and outer and new adjusting sleeves along with pitman arm and idler Arm. This is a power steering set up so the pitman is the same for all years. My question is do I need to get a 71/72 drag link and change all components to 71/72 components or is there some kind of combination of 67-70 and 71/72 tie rods that will make all of this mount up? I do not know if the drag link went through any changes in 71.