This is the complete rear brake setup off a 71 charger rt with an 8 3/4 rear. I confess I know less about brakes than most other things so I am not going to be much help with questions. They are selling a lot of different brake setups on here including just the backing plates for 300 so I have to assume someone must need the whole setup. I will probably have to ship in two seperate boxes as they are as heavy as my mother in law however not quite as dirty. Anyway I'm clueless as how to price them as there is not another set of these on here. So we will see where this goes