Disc Brake Hardware Kit Installation, HOW?

Thanks Dart, but what is the way to assemble the two piece metal retainers? The longer flat piece, I can see how it goes on, but the smaller piece, does it go on top or where/ thanks for your reply. Also, I have run into another problem on my conversion.

Barracuda (67) outer tie rods, big bucks and also left hand and right hand.

Duster (73) outer tie rods, cheap, but my parts guy ordered and they are both right hand threads. I looked on several parts supplier's websites and they don't show a left and right thread for a Duster outer tie rod. What gives. I thought they would work or interchange. (thanks for viewing a steering question on the brake forum.