8 3/4 vs. 7 1/4 brake question

I'm planning on swapping out my 7.25 with a 8.75 rear end. But in order to prepare for the swap I have a quick question.... Are all 8.75 rear ends brakes big bolt patterns or are they small bolt patterns as well? I am trying to see if ill need to replace my Boyd Cottington wheels after I swap out the rears end. Thanks guys!