It took more time to find the correct part than it did to make the repair. I took the Dairy Shelf out of the refrigerator door by lifting it up about 1 inch and pulling it out. The Dairy Door has two round tabs on it, one on each side, that fit into round cut-outs on the Dairy Shelf. I lined up the new Dairy Door with the Dairy Shelf to determine which side is up and fit the Dairy Door tabs into the Dairy Shelf slots and finally into the round cut-outs. I had to deflect the plastic Dairy Door slightly to insert the 2nd round tab into its' round cut-out. Once installed, I tested the door to ensure it opened and closed. Finally, I re-installed the Dairy Shelf/Dairy Door combo in the refrigerator door. Total time was less than 1 minute.