Well I was planning on dropping my rebuilt engine and atx into the car this weekend. I picked up a new torque converter from O'Reilly. They asked me if I had a 10" or 11" tc. I asked them if I could just measure the diameter and they said sure. I measured it and it was 11". Took the converter home dropped it in the atx and it wobbles on the shaft....it is all the way in. If you turn it, you can hear the teeth skip....Called them back up and they just said this is weird! They are ordering the 10" Anyone know the story on this? I did read about having a stamp a or b, but mine had none. Oh well, another week delay......