To feed the brakes we did a little junkyard scrounging and pulled a brake booster and master cylinder off a 2007 Dodge Nitro. We don’t know why, but the Nitro has a brake system similar to the JK, but according to our research it has a larger bore diameter on the master cylinder. The booster is also relatively small and will fit in the factory spot in the Rover. The Rover brake booster was inoperative and expensive to rebuild and we couldn’t source any new or remanufactured units. We did have to drill the Nitro booster mounting bolt pattern, but using the factory Nitro aluminum bracket as a template made it easy.