For the two lower retaining pins - they no longer exist on mine. I'm assuming they're there as a little insurance against the lower bumper cover catches accidentally releasing. Those catches aren't going anywhere so bye bye retaining pins.
Best wishes and keep on modding April 2009 SOTM, July 2009 ROTM, 2009 FF ROTY
RIFF CREW, Sedan Revolution #137, TEAM Duratec #181, Bremerton Raceway #658, NW POSSE #6