As a CANADIAN 1965 Plymouth Savoy, they could be 11 “ x 2 “
Or 11 “ x 2 1/2 “ …..
Remember, the Brake Drum is named by the width of the Brake Shoe….The Brake Shoe is centered on the Brake Drum , and does not seat Lip - to - Lip….
Such that,
An 11 “ x 2 “ Brake Drum actually has a total depth...