I’m going to start with what I did. I bought new shoes new drums new hardware and wheel cylinders for the rear also new brake lines for the rear that go on the axle. I also deleted the load sensing valve and put a 97 YJ proportioning valve on so now I only use one line to the rear that should be everything to the rear. I also did the WJ brake booster and MC swap. I thinks that all I’ve done now after doing all this I’m running into a major problem my brakes go to the floor when my truck is running but when I turn it off and bless the air pressure it’s back to a hard pedal. I’ve tried a different booster a different MC nothing changed that’s all I’ve tried so far. Any kind of idea will be appreciated thanks.
