Hey there,
Sorry but you have 71,73 stuff there. All of its specific to those years. cept wheel bearings. LOL. Nothing will interchange with the 74 up stuff.
However if you want brakes the Wilwood stuff will mount up. If you look at their web site all of there pinto listings state 71-80. But your stuck with ball joints,bushings and bolt up sway bar stuff for 71-73. To change would be major. I cant tell from the pic but if the preivious owner swapped in the whole crossmember from 71-73 car then youd need to start with a 74 up crossmember. Then you could start getting all the nice suspension stuff for the 74 and up crowd.
Why Ford did this ill never know. But they changed almost every dimension just a little bit yet kept the same basic design. The spindles a lot taller, with bigger holes, has bigger bushings (just a little), and the size is just a little bigger. Oh and the lower ball joint is also specific. The spacing between the holes is different by i think 3/8". So the 74 up sway bar stuff that bolts to the strut rods has to be modified. Ask me how i found out that! LOL
Anyways, good luck!