My GE Refrigerator Model TBX18SIBQLWW is leaking water inside down to the bottom, under the vegetable crisper drawers. I took everything out of the freezer and removed the back panel, and see that the drip tray under the evaporator coils is rusted through, so that instead of going into the drip tube, the water is running down the inside to the bottom of the unit.

Can this tray be replaced? If so, could anyone tell me the part number to order, and hopefully also provide instructions to follow to do the repair?