The ones you've been hunting for to add 12" Bendix style self-adjusting hydraulic brakes to your mechanical brake Model A or to upgrade original Ford Lockheed juice brakes. Nice pair of original backing plates. They even have the bump for the parking brake cable if you want to use them in the rear. Buyer to pay insured shipping. I also have 12" Buick shoe/adjuster springs, adjuster linkage, new NAPA self adjusting kits and parking brake linkage available separately for $65 plus shipping (missing one shoe drag link).