what are you calling a pitman arm?
you should only have one & it's attached to the steering box & draglink, the other side of the drag link is supported by the idler arm & attached to the drag link are the tie rods, which I managed to snap on last night & attached to the tie rods are the tie rod ends that attach to the knuckles.
$50 from repco today
i'm pretty certain there shouldn't be any welded parts.