From what I can see on my 67, I do not have either of the front ones. But I do not notice any strange vibrations when driving other than typical 40 year old car rattles, so I am not too worried about it. Has anyone actually experienced these supposed "vibrations" that can shed some light on what they might feel like or when they may occur so those of us without the shakers can determine if we in fact have them? Are they that bad that you would know? lol.. Im assuming that they would be.
Anyway, I am not going to worry too bad about the missing front ones.