None taken... My fronts are working fine...no stuck pistons...new cylinders in the rear. When I bought the vehicle the rears did not work...the cylinders were frozen...r&r'd them...no one was with me so I just gravity bled, adjusted the shoes to the proper spots, (just barley rubbing the drum) and left for home...rears still non-functional. went back the next day with a buddy and tried to bleed..pumping produces no psi to the rear...there are no leaks..lines are fine...original question...Master? propotioning valve? or Demons?
PS this is my fullsize Bronco...a little too cold for the Z!!!!