67 pitman arm question

GTSDustin said
It is original 67 k member. I knew the 68s were totally redesigned for the better since I have 2 68s myself. But as Jim lusk noted, I don't have the thick washer on top under the castle nut. I'll do that tomorrow

WHOA WHOA WHOOOOOOAAAAAHHHH!!! Back up there big fella!!!

This is starting to sound like you are trying to use a 68 idler on a 67 K. The 67 idler should have a STUD mount and nut, and the 68 / later has a through bolt and nut

Somebody doing a conversion

https://dartslantsix.wordpress.com/2012/10/07/idler-arm-conversion-67-to-73/

Below is a photo of a 67 I stole off the www. Notice this is NOT a bolt through there, but a stud. It must be a tight fit in the bracket or it will "move"