Installing a 1972 A Body Manual steering box on 1973 Duster

Hi.
I am new here first post.

Will it fit? I have a 72 manual box with the 72 pitman arm on the box. Will I have to change the center link on the 73 Duster?
Flaming river tech guy say it will fit ,that the center links are the same.

I was also told (by another person) I need the 73 up box with the 73 pitman arm or I could change the center link to a 72 along with the idler arm.