How can I fix my Whirlpool refrigerator's pan track for model #GS6SHEEXS00?

The track for the snack pan in my refrigerator is broken resulting in the tray falling out of the track if pulled out to far. I have looked into replacement part websites which seem to only have a replacement part for the entire shelf that the pan attaches to. Is there a way to only replace the track which appears to be a seperate component which snaps into the glass shelf? If so, how do I find it? It seems rediculous to have to replace the entire shelf for a simple broken track that attaches to the shelf.