Im posting what I have found to help anyone else looking into this swap. I know there is a 07+ part numbers thread but I thought it would be helpful to have a thread just for this swap for easy reference. I have not ordered these parts but I got the VIN # off a 2011 HD and had a buddy at the dealership look up these for me! Heres what I got: Hood info -Hood- 20952912 -Hood trim molding (Grille piece)- 20963700 -Plastic molding (cowling piece that says Allison or Duramax or whatever)- (Left side) 20927551 (Right side) 20927552 -Vortec emblem (to go on the plastic molding) - 25886641 will need 2 of these. 1 for each side. -Grille- 20966058 -Bowtie - 25886735 -Hood insulator (Under hood pad) 25925254 -HD grill painted white part # 22842237 Bumper info -Top cap 25883355 -Bumper "bar" without foglight holes - 25832522 -Bumper "bar" with foglight holes - 25883349 -Fog buckets - 25883360 (Left side) 25883361 (Right side) -Valance - 25883354 -Chin/extension - 20845670 -Outer brackets - 25883350 (Left side) 25883351 (Right side) -Outer reinforcement - 25883348 (Left side) 25883347 (Right side) -Center reinforcement - 25996794 -Fog Lamps - (Left side) 25883245 and (Right side) 25883246 -Inner fender liner passenger side 20782780 -Inner fender liner driver side 20782779 -HD paintable Hood molding # 22765886 -HD paintable bumper pad # 22765739 this does not reflect any brackets/nuts/bolts or clips. i feel the ones from the 1500 would work as well. I do know the actual brackets attaching it to the truck is the same. For quick reference: Link to http://gmpartsonline.net/ Link to http://www.gmpartsdirect.com/ Heres a picture for motivation! HOW TO MOUNT 2011 HD FRONT BUMPER Ok, so ill try to explain what I did the best I can. Im posting a picture at the bottom for reference because I didnt take pictures. -I used the factory 1500 brackets. I cut the back of the bracket from the center to the outside of the truck. (The side that bolts to the bumper, from the center towards the tire if that makes sense.) -Then part number 7 in the diagram (inner bracket), I unbolted and raised it 1''. I used part number 6 (anchor plate) as the templet and drilled TWO new holes, I didnt use the top hole. After I used part number 6 as a templet I cut a top portion off so it would fit back into place. (when you raise it up an inch, part number 6 is too tall to fit back into place so you have to cut some of the top off, I cut the top hole off when I did this) -I put the mounting brackets on the truck and just put the bolts finger tight. Then with part numbers 6 and 7 relocated and cut I put them back on the bumper and put the bumper on the truck. You may have to wallow out some of the holes to get a perfect fit. -After I got the bumper where I wanted it and I tightened everything down I pushed the end of the bumper where I wanted them and drilled a hole for the support brackets on each end of the bumper. (the bar that goes around the backside of the fog light) I only drilled one new hole for them and it holds perfect. It should have two but I didnt feel I needed both and it works fine for me. Thats everything I can think of right now. Im not making this to tell you guys how to do your swap. Im just sharing my experience because most of time I spent on my swap today was trial and error to get everything to line up. I would have been glad to have just something to go off of before I got started. All I kept reading was the bumper just bolts up and that wasnt the case. If you can half ass figure stuff out and have a buddy to give a hand here and there you will have no problems. Good luck, hope this helps you guys a little.