Rear drums, hooked to the front resevoir, the smaller one. I called Dr.Diff and spoke with him, he believes it may be the master cylinder too. Randomly losing hydraulic pressure due to a slightly out of spec piston. I’m going to call right stuff detailing and see what they say, Cass advised to do this. I’ll probably end up ordering his aluminum one because its easy to install conpared to the under dash limbo and contortionist routine.
