Just read this, so bear with me. Going way back to a pic of the pitman; Wrong nut, and why isn't it seated in the draglink? I only remember the idler needing the foam washer. And it's hard to tell from the pic, but the top of the drag hole looks strange.
The box to frame should be 12 star? and torqued hard; info somewhere. Have a 70 a-body; only replaced the idler, that took 3 tries until correct one was found. On a 69 b body, we just replaced box and pitman, guess we were lucky on long/short sector; only problem is pass tie rod hitting header-shim engine up.
I have been playing with mopars for 30 years, and haven't seen that problem.
