Duster Brake ID

What year Duster and engine size, do you have ? From the looks of your 8 3/4, it's a 340 car !
From what I've read on this site before, they say, don't buy rebuilt.

1973 340 Duster. Why buy rebuilt when for a few dollars more you can get new replacement parts.

Later in the year I will replace the whole front end & do a Wilwood upgrade, the only thing then is do I keep it SBP or go LBP.
At the moment it has Ralleys which I want to keep.