Brake bleeding issue?

Yes rear, left rear, passenger front, front driver. I've been bleeding my own brakes for approx. 40 years. This is the first time the rear brake bleeding is distinctly different front the front. Thanks

Thanks.

Yes, right rear, left rear, passenger front, front driver. I've been bleeding my own brakes for approximately 40 years. This is the first time the rear brake bleeding is distinctly different front the front.

Yesterday I had my wife help me pressure bleed. Air bubbles were removed and then only fluid as desired on the rear. However, the brake pedal still has a hard stop 2/3 down to the floor. I spoke to a local guy at Oreilly's. He suggested removing both rear hard lines and brake clean them. I did so. What was strange is the small junction box dripped fluid under gravity, but I was able to pressure pump the pedal up with several pumps. Might imply proportional valve broken? I also disconnected all my lines to my proportional valve and sprayed them out with brake clean. I reassembled and did pressure bleed rear to front and same symptoms, front goes to floor bleeding and rear hard stops at 2/3 travel. I was able to overcome the proportional valve at about 35 mph and lock up the brakes. However, the valve prevents a lock up very well as designed without extra hard attempt to brake super hard. I would suspect a blockage but for the exact 2/3 travel lock at the same point and only on the rear bleeding. I am beginning to think the prop valve may have a lock point for the rear when bleeding by design? If so, I've never run into this but overall, the brakes seem closer to normal. It's just very confusing for the rear bleeding to have a pedal travel stop point. I am certain all air is removed on all 4 wheels under pressure. Now I plan to take short trips and gain basic confidence that all well in spite of this unusual bleeding behavior. Have you ever heard of the rear brake bleeding limiting pedal travel? And of course, being able to build pedal pressure with rear lines removed and minimal fluid coming out with engine off seems like something is still wrong? However, with engine running much more fluid will bleed into the tube I attached to the bottle to prevent air draw. It is almost like electric wire to prop valve must be activated for rear bleeding? Just strangest brake situation I've ever experienced or heard of. No ABS.

No, the pedal hard stops, and I can push as hard as I want to or wait a minute or more with full pressure and it does not budge. I did not try to push on it for a longer period of time, but I don't think it would move. Just an extremely hard stop and always at the same travel point of about 2/3 down to the floor. The electric line on the prop valve looks like a vacuum connector under the rubber connection. It may be "closed" by default and opens on engine start and brake push. I drove the truck 60-mile round trip today. It brakes but is still too close to the floor to be correct. I used it to hold on a 30-degree driveway at stop at one point. It holds but the pedal is too far down to be fully normal.