Today I found that the adjuster was completely loose on the front pass side. My only conclusion is that this alowed the shoes to press uncontrollably. I pulled the hub, re-installed the adjusteer at the bottom , adjusted fronts and rear, and now I've got some real pedal....stilll some air in there. I hope to get the wife to help me to bleed, and then shoudl be ready to go. I am still worried because of the earlier question - I have an old style single reservoir....should I switch, and if so, to what.????? My truck is a '53 half ton.