How to identify a 67 specific k-member

Bodyperson said
Idler arm is the Achilles heal in every parallelogram steering linkage as far as I can see.

Worst I remember was in the 80's we had about a 68? E200 Ford van. Linkage ?idler? had a weird bell crank setup. it was worn out and YOU COULD NOT BUY one.

Manuel "herding" had about 1/4 turn slop in the wheel