2003 silverado 1500 Tail lights

i've got a 2000 silverado 1500, does anyone know if the 2003 silverado tail lights will fit on my truck or does it need some modification?

They are a direct bolt on. No mod needed. You may have to switch some bulbs though, im not entirely sure about that.

They will fit, but you need a new wiring harness.

THEY FIT!! AND YOU DON'T NEED A WIRING HARNESS. I HAVE THEM ON MY 99 AND ALL I HAD TO DO IS CUT ALITTLE OF THE PLASTIC A WAY WHERE THE BULBS LOCK IN. THERE WILL BE ONE HOLE THAT WONT BE FILLED BECAUSE THE 03's HAVE ON MORE.

Direct bolt-on. You don't have to change any bulbs or wiring harness.

Like frontline said you will leave one hole empty, 2003s have one more bulb.

-slacker