bifold door track system

Thanks for reaching out to us. From your photos, you are showing the old Stanley closet bi-fold set. The items you are showing are the 23-130 top door slide, the 23-302 top pivot bracket, and the 23-135 bottom threaded pivot. You didn't give the width of the closet door, so we pulled up the various size tracks you can use from 23-509 up to 23-520. Take a look and see what you think.