I changed the bumper on my 95 to an '01. The bumper mounts are different so you'll have to get the brackets with it and drill 2 holes.
The grill is different as it drops lower into the recess for the newer bumper, or you're left with a 1 1/2 inch gap between them. The top of the older bumpers is level with a straight line. The newer ones have a dip between the headlights.
You'll have to get the grill frame also and add a few holes to it to line up with the hood.
This is what it looked like with the older grill and newer bumper: