I recently wrecked my 04 Sierra LS and I'm stuck replacing the grille, lower valance, and drivers side head and passger light as well as both fog lights. I've really liked the look of the Sierra Denali front ends,(lights, grille, and valance) and would like to replace my regular Sierra LS with the Denali front parts. Does anyone know if it is possible to just change the entire front end with those parts, or is there any specific mounting locations that would cause a problem doing so? I know when ordering parts most are either non C3 or Denali packages or with those 2 packages installed. I don't see much difference in the 2 besides visual looks all the mounting seems fairly similar except with the fog lights, which use a smaller mounting bracket then the standard Sierra. So if anyone has any experience doing body work or has a simlar interest in a denali front end conversion that has any tips or suggestions I would be very greatful for your advice.