I messed around with this brake problem several more times.
After trying to get steady fluid from the rear driver side caliper that I was having trouble with I finally got good flow from it by tapping the left side of the proportioning valve/brake modulator with a dead blow hammer. After several taps, fluid started flowing from the rear driver side caliper.
Unfortunately, this worked after trying various methods such as help things along by using the brake pedal and using a higher pressure on the motive bleeder. Pretty sure one or both helped destroy the master cylinder as after bleeding several times the pedal was to the floor and the brake failure was staying illuminated. After the last attemp I then noticed bubbling going on inside of the brake fluid reservoir.
So the next step is to install a master cylinder. The one I picked up at autozone was brand new, under the duralast brand. It is made by Fenco, looks solid and it conveniently came with a bench bleed kit. It was $42. Hopefully the installation will go off without a hitch.
I will repost when I am finished.
Travis
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