MBM is literally just a stock 73+ brake set up, they are just reproduction factory parts with a couple of minor modifications.
All MBM/PirateJack does for their SBP kit is drill a 5x4” bolt pattern on blank 73+ rotors and turn down the hub register a little bit so they fit a couple more of the early style rims. Other than that, the MBM kit is just a reproduction 73+ Mopar disk brake set up. And they include the tapered ball joint adapters.
Their BBP kit is just a 73+ disk set up. They add the tapered ball joint adapters for cars that were originally SBP so the UCA’s don’t have to be changed. That’s it. Well, that and the cheap wheel bearings and components. DoctorDiff will sell you a 73+ brake kit and you get real Timken bearings, quality seals and actual customer service.
