55.2-59 1958 Apache 38 brakes dragging all around.

[dsraven]

since it is single master cylnder system, the master cylinder runs ALL the brakes from a single circuit. that means if the rears are the only nes sticking then it is a rear brake issue. start bt first checking the easy stuff.
check for a leaky wheel seal that leaks axle lube out onto the brake shoes as this makes brakes sticky. usually easy to see as the backing plate is moist or oily/dirty looking from the back side.
check for a stuck park brake mechanism or a stuck cable thats not allowing the brakes to return.
check the rubber hose that goes from the frame to the axle to ensure it isn't cracked, restrictive or has a flap inside that works like a one way valve. check the steel line for heavy rust or pinched/kinked spots
then its the harder stuff that requires the wheels to come off, the brake drum to come off, and a visual inspectiom to see if something obvious is happening. a broken shoe return spring, linings that have become delaminated from the steel shoe or linings that are cracked, unrivetted from the steel shoe, etc.
check the wheel cylinders to ensure they are in good shape and not leaking or seized up. pull the rubber boot back and look inside there. moving the shoes should result in movement of the wheel cylinder pistons
check the backing plates for wear grooves that allow the shoes to slip into the grooves and not return like they should.
I would take a new rubber hose, some wheel cylinders, brake fluid, a set of shoes, a set of wheel cylinders, possibly some drums, some brake lube for where the shoes contact the backing plates, a hardware kit, some penetrating fluid and a bunch of tools including a propane torch to heat up stuff that doesn't wanna unseize and a one ,an brake bleeder. take lots, return what you don't need when youre done.