The odd one is the one piece one where you can't pull the drum off of the hub. These are what's on my 69. I think there was a thread way, way back, sometime before the board was redone that described some people having these one piece and some having the 2 piece drum/hub combos. Could be they were a stock replacement some parts store offered. I'll be pulling mine sometime in the next week to replace the brake cylinders. I'll check for any numbers stamped on them anywhere.
Tim, Way back in my memory I seem to remember taking a one piece front drum off one of my 68 Birds. It was an all original car. I think you are on to something.....
