well since no one replyed to my fitting 02 in an 03 tailight comment i'm going to tell my observations. the only difference between a 99-02 and 03+ tail lights is the marker 194 bulb light. I recently bought 02 LED tail lights for my 03 silverado and the only difference i've noticed is the marker light in the bottom corner. thank you for reading and apricating my comments. atleast i have the balls to try something different. 99-02's FOR A SILVERADO DO FIT AN 03+ CLASSIC MINUS THE CORNER MARKER LIGHT (194 BULB) SO EVERYONE ELSE KNOWS. thank you for atleast viewing.