Don’t understand how pitman and idler arm work at spec torque settings?

Is the hole on the k frame tapered?

Is the idler hitting the k frame where the felt washer is?

In the last 2 years replaced my 67 idler arm with one that looks just like yours, don't recall where I bought it.

I had to put a washer in the nut side of the k frame mount so the castle nut would line up with the cotter pin hole.

I noticed that after the new idler was in, the stearing would not return to center without help (23:1 manual OEM gear box) after a few hundred miles it is returning just fine.