rear end question

Chrysler used the small bolt pattern and the 7 1/4 all the way to 1976 in the A body. If it had drum brakes all around, it had the small bolt pattern. All the way to 76. And as far as the 727, that would be incorrect for the 318 cars, because the 904 was used. My grandfather's 71 Dart was a 318/904/7 1//4 car. Drum brakes. Just like they were all the way to 76.