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.