Wheel Cylinder Bore Sizes

[scrag]

I am trying to order parts to do the brakes on a 68 Dart. It is drum's on all 4 corners with 9 up front and 10 in the bake. I saw specs on 2 different bore sizes and I am trying to decide either how to measure them or which one to go with.
Thanks

 

[1BadDodge71]

something like these ,but not in metric though.You need them for your wheel cylinders?

 

[Rob R]

9" brakes have a 1" on the front and 13/16 on the rear and 10" fronts are 1 1/8 and there was one year that had a 1 3/16 front.The 10" rears were all 15/16.