76 C10 Brake Bleeding Issues

[KY_GMC]

So, we finally got the brakes bled with a hard pedal.

The new hose assembly from the rear line to the axle lines was slipping on the crimped fitting at the tee. We could turn the hose, even though the end fitting was tight on the tee fitting. We replaced the hose and made sure that the air would purge out of it by holding level to allow all the air to pass through and then bled the system.

Thanks for all the suggestions but it turned out a faulty replacement part was the culprit.