Product review (5 stars): Works on LG
It worked!  I have a LG LFX28978ST.  When I checked for parts you have to buy the entire mullion, there isn't a separate spring you can buy for that refrigerator.  Well, the pics looked good on this, looked like it was the right way, and it was.  It works!  Just saved 60 bucks.  My door alarm doesn't work anymore, but that stopped working when the spring actually broke and honestly I am probably happier with it not working.  Very happy with this spring.