Sliding mirror closet doors and track
Thanks for reaching out! Your closet door hardware reminds me of our 23-196 Bypass Top Roller Assembly as well as our 23-215 Bypass Bottom Guide Assembly. Take a look over the dimensions for each of these parts to determine if these are the right fit. See what you think.
Our bottom guide, part 23-215, is compatible with our convex closet door tracks. They come in three different lengths 48" (23-240), 60" (23-241), and 72" (23-242). To determine if this is the style replacement track you'll need, you'll need to carefully look over the dimensions below.
Unfortunately, we do not carry a replacement top track compatible with part 23-196.