Sounds like you are describing a brake shoe/pad assembly that is typically found on v-brakes typically on a mtb or hybrid. If that is the case, they will have a stud coming out of the back of the pad/shoe with a nut and some washers. By playing around with the washers and spacers and adding the appropriate toe-in, they will probably work as well as the OEM stuff....maybe better. Give it a try!!!!