76 Dodge DartLite /6 4 Speed

Sorry if this is already posted a million times on the forums, but what's the more surefire way to know if my stock drum brakes have the small versus big bolt pattern? Thanks!

Every A body built with drums brakes had small bolt pattern. 72 and earlier all the disc brakes were also small bolt too. From 73-76 all V8 A bodies had power disc brakes and slant 6 cars with the power brake option got large bolt discs as well. 73-76 slant 6 cars came with small bolt drums standard