I uploaded the drum-brake photo which appears at the bottom of the top post in this thread. You aren’t seeing it there? hmmm … must be some kind of technical difficulty. In that photo – which is presumably a Mopar configuration, but I chose if b/c it is very similar configuration to my Ford truck – there’s a single wheel cylinder at the top, just below an immovable anchor which the top of both shoes abut. At the bottom there’s no anchor, the adjuster there effectively connects the bottom of the two shoes. The two shoes are about the same size but the linings are different. The rear shoe has a significantly longer strip of friction material than the front shoe.