Not trying to bore y'all again... but...
I pulled the left rear apart to replace the brake parts there too & you can see that the shoes had delaminated. If you look at the adjuster, you can see that the brakes had never been adjusted, at least not properly.
Upon re-installing everything, I realized that the only adjustment ever done was to use the parking brake as the adjustment for the rear shoes. I'll have to loosen the parking brake before I can adjust the shoes.
Just a down & dirty way of cleaning the center bore on the drum, I spun it on one of the old brake shoes.