I just recently had my tires rotated and balanced and had the tech remove the rear drums so I could look at the brakes. Well,the shoes had cracks in them. Said it was from dragging brakes. Anyone ever see this before? I guess i'll do a complete overhaul on them,including the wheel cylinders.

 

I changed the shoes,all the hardware,wheel cylinders,turned the drums,and flushed the whole brake system. Dayum! Feels like a new truck again; well,at least the brakes do!

 

Cracks in the lining is usually due to excessive heat so probably is from dragging. Glad you got your brakes back!!