This video gives you the general idea of how to replace it:
Its best to remove the freezer drawer first before you replace it as well.
1. Open the freezer drawer to its full extension.
2. Remove the two screws at the top, inside the drawer front (one on the left-hand side and one on the right-hand side) that fasten the drawer front to the drawer glides.
3. Lift up on the drawer front to release the plastic studs from the drawer glide bracket slots.