Still having trouble bleeding brakes!

[68C15]

here try this. adjust rear shoes tight so they do not move. (shoes completely touching drum). then find a buddy who can push pedal but not completly to floor. open RR bleeder, push pedal, close bleeder, release pedal, wait 5 sec & repeat until no air comes out. do same on LR. by this time you should have a very high & firm pedal. back off the adjustment on shoes so the wheels can be rotated. then take truck to store & purchase a 12 pack of your favorite barley pop. take it back to shop & thank your buddy for the help.
if this doesnt work let me know via PM. I have NEVER had a problem while using this method.