The Bendix brake has a "floating" shoe assembly that pivots on the anchor pin above the wheel cylinder. There is no anchor at the bottom, only a starwheel adjuster. As the cylinder applies hydraulic pressure to the shoes, the rotation of the wheel pushes the long (rear) lining into the drum, assisting the brake action. This process is common to all Bendix-type brakes, regardless of which brand of automobile or truck they're used on.
Jerry

"It is better to be silent and be thought a fool than to speak and eliminate all doubt!" - Abraham Lincoln
Cringe and wail in fear, Eloi- - - - -we Morlocks are on the hunt!
There is nothing noble in being superior to your fellow man; true nobility is being superior to your former self. - Ernest Hemingway
Love your enemies and drive 'em nuts!