8.75 SBP brake options?

8-3/4 10" drums and 7-1/4 small bolt 10" drums do interchange
the 8-3/4 had the flare on them and are hard to find and are expensive
the 7-1/4 small bolt 10" drums do not have the flair, but they are common and will work just fine

rockauto.com has them new for $66.79 each
wagner part # BD60123

http://www.rockauto.com/catalog/raframecatalog.php


P.S. I did not find cudamarks reply to be out of line?
and his info was correct, all small bolt 10" drums are the same
the ones with the skirt came on 8-3/4 rears but they are the same as the ones that came on 7-1/4 rears without the skirt

you may also try an add in the "parts wanted" section as a lot of people scrap 7-1/4" rears when doing big bolt conversions, so you may find some cheap 10" drums off one