I just looked at mine as I have them out..
If you un-screw the handles you can then pull down on the screen. It just has two clips holding the whole thing up. Just put a screw driver under the metal edge and pop it off.
The clips you have there go around the treaded shaft right after it passes through the metal on the bottom. Once you pop the screen off you will be able to see where they go.. Good luck.
May you have at least one sunny day, and a soft chair to sit in..
2008 5.7 L V8 Sequoia
AIR # 31243
WBCCI # 6987
FOUR CORNERS UNIT