I found this a couple of weeks ago. Problem is it only discusses the Quadraulic Brakes, made by Arvin-Meritor. What about the other part of the system? I'm talking about the Hydramax master cylinder. the Hydromax is made by another company, Bosch, I believe. Most people on this forum are concerned, as I am, about the excessive brake pedal pressure needed. So who do we go to for needed help? Arvin Meritor or Bosch? I vote for the Bosch unit. It has to build up the needed pressure to squeeze the calipers together. I have called Bosch and they have assigned a case number to my problem, but that is all, so far. Will keep you posted.
2005 Holiday Rambler Navigator 43PBQ w/detroit 60 series, 2015 Jeep Grand Cherokee toad