Marcus,
There were questions about the validity of the assumption that the original pictures were from the 67-69 type. The focus was on the C4 dust boot and the spring saddle nut/bolt combo. The inference was that the control arms were earlier 65-66 type.
The last post was a picture of what I think is a smaller 65-66 type, and confirming that the original pictures were 67-69, at least in overall control arm physical dimensions. If that can be confirmed by someone, we are back to the question - how did these clean 67-69 type control arms end up with riveted ball joints with C4 boots, and 65-66 style spring saddle mounting hardware.
Does this make sense?