It looks like the ball joint might have been replaced at some time. I see the castle nut is a later style - the castle nut used originally had three raised sections rather than the 6 currently used.
If it were me, I'd replace upper/lower ball joints, inner/outer tie rods and idler/pitman arm for peace of mind.
Edit: From the angle of the photo showing the strut rod, it appears the K frame might be bent or maybe it's just the angle. Looks like someone used a common nut rather than the correct shoulder strut rod nut on it!
2nd Edit: Also replace the upper and lower control arm bushings