Joseph C Hamburg , NY August 11, 2015 Appliance: LG Refrigerator LFC21760ST Lg Refrigerator Lfc21760st / Astclga: Original plastic piece cracked. How to replace Shelf Frame Crisper Drawer Cover. The fix was pretty self explanatory. There are set-in plastic trays that sit under the glass piece. They were difficult to insert, and the pressure snapped one of the tabs on the replacement piece. So one side doesn't have that piece. Otherwise, everything fit fine. Standard Philips head screwdriver and about 10 minutes to swap all the hardware and install. 2 People found this story helpful Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes