Hi all, looking for any information about the rear brake pressure valve. Currently I have very little brake fluid flow to the right rear brake and no flow to the left rear. The lines and all else seem to check ok. I now get to the pressure valve and have searched for days on how this is supposed to work. I literally found nothing showing this thing working or how it works and what is supposed to move other than acting on suspension height. From the way it looks I would think the two pins sticking out from the rubber grommets (circled in red below) move in and out as the suspension rises and lowers to change the brake fluid pressure. At least that is tho only way I can think it would work as there are no parts moving except for the arm connected to the spring. The two pins are solid and do not move. Is this the issue or am I guessing wrong? If they are locked and should move is this serviceable? I see the whole part is obsolete and costs it’s weight in gold currently. I did try to remove the attached brake lines but just could not get the leverage from the puny wrenches that can attach in that small space. Fun! Thanks for any advice!