I have been down the rabbit hole with my brakes.
Everying appears to be working normally , except one thing. When I park the truck overnight, the rear brakes bind in the morning, until I drive the car for 20 minutes.
They are adjusted by going all the way tight and backing off 12 clicks. They are just barely touching when adjustment is finished and the car drives normally. The next morning the rear brakes are sticking. This problem only started after replacing the adjuster retaining clips. Clips are well lubricated.
The front brakes are adjusted the same way, but don't bind the next morning.
Things fixed:
too tight parking brake cable
replaced adjuster clips
wheel cyclinders
master cyclinder rebuild and check valve issue
brake peddle preload.
All hoses tubes springs shoes and new drums re-turned.