Here are the numbers I found. I was told when I bought the car that the engine was not numbers matching. Here are the engine numbers, there were two sets found below the aternator on the passenger side of the engine, I'm not sure what it could be out of:
VO or VD 211CMU, I couldn't tell if it was an 'O' or a 'D'.
C8A18D found on the pan. I think this decodes to Powerglide, 1968, January 18th, dayshift?
8Y156780 or 790, not sure if it was an '8' or a '9'. Not sure how to decode these.
Rear axle numbers:
BP 0410G1 found on the front passenger side of the axle shaft. All I could get out of these was April 10th, not sure what BP means or G1?
C39 found on the back left side of the meatball, upside down, in about the '10 O'Clock' position. This numbers seems to indicate March 3rd, 1969?
This car has a singleleaf suspension, it appears to be original as I just relaced everything it was an incredible task removing the old leafs and hardware. I also discovered while I was under there that this car was originally a column shift car, which makes sense since your research shows that there were no floor shift PG's in 1969, correct?
In any case, any help you can give me is incredibly helpful, I really do appreciate it as I'd like to get this car back to a close to original as possible.