pitman arm

I have the same 7282-flc1 manual steering pitman with a ( big dog ) 1969 dart v8 k member. My k member has big bolt pattern brakes with it, and 73 up spindles. So I was wondering if this smorgasbord of pieces once used a cross link from a pre- or post 73 car . I wanted to use it on my 75 duster project, when I found this post. Now that I see you're asking about a 1969 dart I'm just going to buy the post 73 arm, and save the headache of being wrong.