[1979 GMC Sierra]

Hey guys, im usually on the squarebody side of this site as I drive a 1976 GMC pickup. But my dad has a 2005 GMC Sierra, and i'd just like to know if all the front fenders for 99-06 GMC and Chevy trucks are the same? We're looking to replace a passenger side front fender. Are the GMC and Chevy the same for 99-06? I know with squarebody's, the 73-80 GMC and Chevy are the same, as is the 81-87 GMC and Chevy front fenders. If you guys could help me out and let me know, that would be cool. Thanks.