Technical KH-25672 Brake drum

NOS Kelsey Hayes. I trying to check a part number and am unable to cross. I believe they are for Ford / Mercury juice brakes. 5 om 5-1/2 bolt pattern. Anybody have any old Kelsey Hayes parts books.
KH-25672 Brake drum

 

did you get any answer? looking for a part book too there are couple of Nos Drum i'm interested in with a different KH number and would like to understand if they are compatible with my ford