I realize this whole thread is in relation to 67, so I'll start there.
The assembly manual says
- clamp bolt is 304759-S2 || phosphate and lube
- clamp nut is 34443-S7 || Cadmium plate (as noted in the 6 cyl section since V8 is not listed
However, V8 or no, all the cone-style squeeze nuts on the 67 suspension are Cadmium plate.
Jim states in this thread:
http://www.concoursmustang.com/forum/index.php?topic=20084.msg126982#msg126982That the 66 Shelby nut is S2. Perhaps this leads this finish being thought of as correct for 67-on?
Although for a 68, Jeff notes this finish for the sleeve:
Tie rod adjustment sleeves - natural steel - Yes new steel look - not as dark as tie rods
here
http://www.concoursmustang.com/forum/index.php?topic=7192.msg40595#msg40595Here is the picture Marcus has for the 67 sleeve, nut and bolt.
I'm not sure how this can be construed as anything other than P&O for nut and bolt, dark sleeve and lighter clamp.
I'm just trying to get the right finish as there appears to be competing viewpoints.
[edit -- it took a bit to construct this post so others came in after Jeff's reply]