I picked up a 18 spline 4-speed the other day. There is no VIN on the pad, and the numbers are PP8332614 0012. There are remnants of turquoise paint. The 10000 day calendar says September 23, 1968. This should be a 1969 transmission, correct? Would this be the 12th one built that day. Sort of confusing as to why no VIN also. Any ideas?