I have to replace and rebuild everything with the brakes cause it is just trash and need to know what I have of course to get parts. I cleaned the whole 3rd member and found no numbers, just those lines and on the side a circle of dots about the size of a quarter with a larger dot in the middle- probable doesn't mean anything tho. I may pull the 3rd member tomorow then and see what I can find. Any ideas please let me know.