73-76 steering linkage in 69 barracuda..

Possible?
Benefits?
Has to be done when upgrading to tubular control arms and LBP disc brake setup?

I believe my linkage has the idler arm that is a stud on one side and a bolt through on the other. I have been led to believe that this was on the 67 barracudas only, therefore I might have a 67 steering linkage setup. Please correct me if I'm wrong.

I am going to be purchasing a fast ratio idler/pitman arm setup and wanted to make sure when I do my tubular control arm purchase I don't have to repurchase the fast ratio setup.
The odd ball style did not have the through bolt. I have 74 linkage on my 68 Dart but then I used a 71 K frame. Here they are side by side, as you can see the idler arm brackets are the same. Early steering boxes and idler arms are like the ones you see here where it connects upward through the center link.