Thank you for the encouragement, Zieg, I did get the brakes working. I had originally replaced a 3’ section of brake line near the center of the vehicle but then had to replace an additional 5’ length back to the axle. I purchased one of the long 8mm brake wrenches but then had to heat and bend as shown in my photo. The bleeder was well rounded to begin with so the wrench only grabbed enough for a partial turn before it hit the brake line, springs or axle u-bolts. There is no chance of getting the bleeder completely out to replace it as there is just no way to reach in and hold it while turning.
The wrench got me a partial turn but then I couldn’t take it off and reposition it as it hadn't turned the bleeder far enough to reach another flat spot. Extra long vice grips got another partial turn and then the wrench again got just enough to get fluid to flow. It was slow and frustrating but I did manage to get the driver’s side bled and a pretty solid brake pedal. I had hoped to also bleed the passenger side rear but I really do not think that is possible. It’s only a site truck and will never have to pass inspection so we will see how it does plowing this winter.
The next project is the parking brake assembly that is so worn that the pawl won’t hold on the pedal. I think I will drill out the center pivot and reassemble using a bolt with large washers on each side and then drill the nut for a cotter pin. Should be interested if I can get it back together and working.
Thanks again for your help and responses.
JIM