K F Stote is correct - I have the exact same problem. The tabs are definitely wider in the replacement cover, so the older rails do not fit in this unit. Customers should be prepared to order new rails if they have an older model of this refrigerator. The manufacturer may not consider that the tabs are different for an older model.
Bh for Model Number LRFC21755ST
ANSWER Hi Bh. The manufacture does not advise the tabs are different. Check and make sure the cover 3550JJ1079A is turned in the right direction. Thank You.
Answered by AppliancePartsPros.com | Wednesday, January 04, 2012