A "floating" brake assembly like the Bendix with no bottom anchor CANNOT be adjusted by listening or feeling for drag as the adjuster is backed off. One brake shoe can, and often does stay close enough to the drum to hear a scuff until the brakes are applied and the brake self-centers. Too much release during adjustment causes a low pedal. Tighten each wheel until there is a firm drag (not a locked wheel) and then back off a set number of clicks. For manual-adjust brakes I've used 10 notches for the past 50 years with no problems. Self-adjusting brakes with the fine tooth adjusters get backed off 20 clicks after the drag is felt.
Jerry

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