I ordered and received my 66 no dash, 2.5", early 1976 and my serial number is 6K79984. Still have the receipt, cost me a whole $149.00 and was shipped USPS directly to my door. As a side note, I guess I ordered at the right time. Immediately after mine came in, my Sgt. looked at it and ordered one for himself. His didn't come in until a year later.