Brake Problems!

[MJ_Milam]

     ok so here is the skinny, 89 comanche non-ABS. I started eliminating the load leveling valve from the rear. removed the hard line from the propportioning valve. plugged the "nose" of the the prop valve (i know that was wrong now but i will get to that) drove around for a few months like that before realizing my rear brakes didn't work. did some research and found out that my rear brakes should be fed from the "nose" of the prop valve and the bottom front of the valve should be plugged (rookie mistake I know). so i corrected it and gravity bled the lines. then did the normal pump the pedal and bleed. did that and had no pedal i.e went to the floor. repeated this step 3 times with same results. probably went through a quart of brake fluid during this bleeding process. so experience taught me problem with the master. bench bled the master same result. so just for the hell of it i replaced it with a new master cylinder (not an autozone replacement). bench bled the new master, installed it, bled the lines and still the same results.

     so after a weekend of work i ended up with worse brakes then i started with. i would greatly appreciate any help or if there's something i'm missing that is a comanche snafu or I've gone full retard and am missing something simple. I know there's some comanche brake expert's on here. thanks

[JFAComanche6]

Well, I've never messed with the rear brakelines on my MJ (thank God) but all I can think of is check for leaks. I also heard that stupid proportioning valve is a piece. Sounds like you might have wanted to keep it for a while though, I know I would be thinking so haha