That seems like it would make the most sense with what's going on, I will probably go ahead and replace that and double check the rear adjustment while I'm at it.
I will have to pull the master and check, bit I have been watching the reservoir closely since the brakes have started feeling strange and visually inspected all lines. So I know there is no leaks.
It does bleed down, when I replace the wheel cyclander the rear shoes appeared to be alright and would adjust out on their own when pressing the petal. They also had plenty of life left to them.
It's only an issue when driving and pumping the brakes a couple times in park causes them to work again. Sometimes they don't work at all and sometime it's while you are breaking, also the front will still stop me but only with the petal all the way down. There is also no leaks, I just replace...
I haven't seen any signs or deterioration on them and I sounds like it would be a little cheaper and easier than running a new line, then hopefully I would finally have reliable brakes again.
I was investigating a loss of brakes and found this unkown fitting attached to the brake line feeding the rear brakes. No diagram I could find it showed it and no one I knew with one of these trucks have seen it either. The lower line is being fed from the proportioning valve and the top line...