Some suspension and brake questions

Well I'll have to take a look at the parts and check numbers when I get home from work. This is the only picture I have of the drum/spindle assembly.

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Put a ruler across them studs, and post the measurement. I'm betting those are SBP drums like the ones I pulled off that 74 valiant to get at the BBJ UCAs. Reason I pulled all that **** off was I also wanted the LCAs too.i could go to the junkyard with my 6" machinests scale to get a pic. But I already know they are SBP junk.