Gilbert, I could go on and on but, just keep going through this thread. It has been dealt with over and over. Check out moparaction.com. too. moparperformance.com. They'll tell ya how to do it right.gilbert wrote:finished restoring 74 challenger with 318 motor, the car is # matching but has manual breaks ,want to change to power break, purchased the bouster and now ready to change over. does anyone know if I need anything else to make the conversion ? The rod that connects from bouster to break peddle seems shorter, has anyone done this before?