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

Maybe your idler arm is bad. I bought a Moog idler for my 68 from Rockauto. The pin wasn't installed into the bearing correctly so Rockauto sent me a replacement. That one had the bearing seized right out of the box. I was able to work it back and forth and it freed up some but it's still pretty tight. If you bought a Moog, maybe try a different brand.

As previously stated, 67 uses a different idler arm. Can you post a picture of the idler you have and the k-member? Rockauto doesn't even list an idler for a 67.