89-95 Tracker:
Remove 1 screw in the uper center of the grill (above the emblem) and remove 1 screw from each fenderwell. Then just pull grille straight out.
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Not on my 93...  My 93 has those, PLUS two across the bottom of the grille assembly.. as shown on my diagram (note, I replaced my grill center with expanded steel after trail damage)
Just look, the only hidden ones are the ones under the fenders on each side.. as the whole lower
"lip" comes off with the grille (at least on mine)
See the pic below.. the green painted part comes off with the black grill as one piece, unlike on a 96... not sure when they changed.. but I wanted to add this about the 93, in case somebody else reads this...., kinda snaps in and out, after the two lower screws, the two under the fender corners, and the one above the emblem
and then, two clips for the emblem.. they are those cheapo clips on mine.. I am sure they varied on different years, but mine was this way