Product review (5 stars): works on LFC20770ST fridge
This spring fits my LG LFC20770ST refrigerator. This spring is about 2 or 3 mm taller than the original spring, and the wire is slightly thicker, but it fits. A 3 minute replacement job. I removed the two screws on the middle hinge, and slid the flappy part upwards about half an inch. I was then able to put the new spring in place. The flapper won't work right until you put the screws back in, so don't panic.