Need New Drums

So, the magic question is what is the width of the Brake shoe.....
The Brake Drum is 1/4 " deeper than the Brake Shoe, because the brake shoe does not go lip - to - lip of the Brake drum....
Such that if the Brake Shoe is 2 1/2" wide, the Brake Drum is called 11 " x 2 1/2 " ....
( And that would have been common in a big block 1970 - 1972 Barracuda / Cuda Rear )

I don’t know why it is bold print all of a sudden --- I must have fat-fingered something?!?!

Craig....