If the bracket is missing, find anywhere convenient to anchor the spring. I've even seen them attached to an exhaust pipe stud with a second nut on it to form a makeshift groove for the spring to hook into. Universal clutch/brake pedal return springs are usually available at professional-level parts stores like NAPA, once you get past the young computer jockey who has to have a make, model, year, VIN number and paint color code before he says "we don't stock that part!"
Jerry
