Stephanie, I do not think there are any new, direct fit replacements... you will have to be creative with your twenty year old truck. You might be able to replace just the bulbs so that the existing lights work. You can always add new fog lights to a different location on the bumper or under the grill. If you have fog lights built into your front plastic valance, you can try to find something that you can attach to the existing bracket, or build your own bracket. You might be able to find a stock rust-fee bracket at a salvage yard. Finally, if necessary, you can also carefully cut some of the existing plastic valance to help make things fit. The stock “fog lights” never seemed that bright, and just seemed more like running lights anyway.
Maybe someone else has more ideas?
Good luck!