Hello,
We have a track you can use for the top and bottom of your mirror doors, the 21-455. You would put the threaded pin into the 21-175 pivot bracket and the spring-loaded pin in the 21-174 nylon guide. You would adjust the bottom threaded pin to square up the door. Please note that the 21-175 bracket and 21-174 roll guide come with the track. You would need to purchase the 21-286 bumper for the top and bottom tracks. Take a look and thanks for posting.
Yes, the 21-455 can be cut down to size. Just keep in mind that parts can not be returned for a refund once they are modified.
