Anybody else have 67 B'cuda Formula S with 7 1/4?

The 7 1/4 was the correct rear up to '66 with all V8s and all transmissions... and they are a bolt in to '67s. Wouldnt surprise me if it was just a left over and they stuck it in on the line. My 66 S 273 4bbl 4sp car had one. The '65 273 2bbl I looked at today has one. The '65 273hp stick in Carlisle had the 3.23 Sure Grip 7 1/4...