FKAHNDA
+1y
u need to strip your entire front end completely of of your truck. drill out the spot welds on core support to the aprons and cut lower welds holding core support on. also unbolt the bolts holding it to the frame. line up your new core support and weld in place. you can however do this swap with your existing core support by doing a little hacking to the support where the head lights go and cutting a little on the head light mounting plastic. also possible shims needed to make everything line up corrrectly.
after doing it that way the 1ST time i stripped the front end again and cut out the old support and welded in the 01 support. i just wasnt happy with what i had done to make it work so i did it the right way the 2ND time. also take my advice and buy factory parts rather than aftermarket. aftermarket parts will work but its the little gaps and the way things line up that will make a guy with ocd go crazy. hope this helps.
Jason