Product review (4 stars): No Screws To Remove!
Looked on YouTube and found several installation videos but found out my KitchenAid refer is a bit different.  This is a completely toolless replacement part.  NO SCREWS!  Both the metal drawer rails and the end cap itself are held in by a small plastic tab that must be moved slightly to allow the part to slide a bit so it can be removed from its mounting posts.  Once I figured that out, the replacement was a 2 minute job, not counting cleaning out the Pantry drawer and pulling it out of the fridge.