I have a 1955 Ford Fairlaine - Does anybody know of a company where I can purchase a complete new brake pedal assembly or a aftermarket assembly?

Are you looking for just the replacement Brake Pedal where your foot pushes on or the complete assembly with arm?Replacement pedals for Manual transmission,Manual brakes for Automatic,or Power Brakes for Automatic are available from several suppliers like Tee-Bird and others who sell replacement parts.