The runner is what the wheels roll along so the door can slide back and forth.
How to change a sliding closet door.
Angle the bottom of the door toward you while you let it down and the wheels should hook right onto the track.
Reuse the old doorknobs from the old sliding doors if possible relying on the wood block to hold the doors in place.
Insert the wheels on the top of the first door into the top track.
Prep the top of the door to accommodate the new doors.
Remove the old doors and the old closet track and any extra molding inside the door frame 1a.
Reuse the screws from the old sliding doors in the new installation.
Stain or paint the closet doors to match the room environment.
Using a pry bar or claw hammer pull all the trim and casing off the old door opening.
1 remove the old door.
Step 2 choosing doors.
Reinstalling sliding bypass doors the doors are usually interchangeable but you will want to start with the rear track.
Attach a magnetic latch to the wood block if desired.
Replacing your sliding closet door.
See how to add value to your home by installing double doors on a closet with hinge mounted doors with a door frame.
Hold the door so the top is tilted backward.
Then latch the wheels on top of the door onto the back runner of the top track.
Sometimes the doors are in good condition.
If you discover that it is not the hardware that needs to be replaced but you need.
Once i took out the old molding i had to put in a filler piece to lower the top of the doorframe to be level with the door molding at the top.
Step 1 evaluating hardware.
This video shows details of how to.