I was out washing off the blazer today and noticed that front turn signals appear to be loose in the grill. before I go twisting and pulling around on the grill, I would like to see what I am getting into.

 

There are some pictures here from my '04 Blazer (scroll down). I assume it's the same on your '99. Just some metal tabs to yank out on the grille, and the turn signals come out pretty easily.

 

I got to them not much there to hold them just a couple of plastic spring clips.
I never noticed that the were that loose before.

thanks