Wow, thanks for the pictures. I can not imagine how I couldn't see or, at the very least, feel that! Wonder if mine is missing? Could it be considerably different between a '67 and a '68? I think I saw some exploded diagrams on another web page and the '67 blower was, in fact, different than the '68-'69s. Correct me, someone, if I'm wrong.

Thanks again, I'll have another look tonight but I am sure I would have seen or felt something of that size.