Reinstall the left and right glove box stopper arms just as they were removed. Close the glove box so that when the stops are reinserted into the holes, the rubber stops are above the dashboard fascia. Slide the stops upwards in the holes so that the tabs on the flanges snap into the glove box holes.

The flanges of the stopper arms should rest flat against the inside wall of the glove box. If they do not rest flat, you have not slid the stops up all the way in the holes.