The crystal ones pictured are for a '94-'96
I have heard that with a bit of elbow grease and some wet/dry paper you can turn the stock lights on the '90-'93 to crystals...
While you have the lenes off, you could rejuvenate the interior foil.....Maybe get them plasi-chromed?
http://www.specialtychromedplastics.com/
Remove the lenses by filling them with boiling water(This softens the sealant so you can pull the lens off the headlight assembly without breaking it)If that doesn't work, you could try baking them in the oven at low temp for 5-10 minsThis has been done many times on Conquest tail lights.