Got the front almost together on my 04 but the one piece of hardware that got me puzzled is #22598028 "plate asm.bumper bar stud". I studied the GM diagrams with no luck about where this part fits/belongs. I bought the "styrofoam" impact bumper & all the hardware I thought I can use to install it, all the old stuff was lost

.My other thought was maybe this part is used only with the stock impact honeycomb bumper, don't know, Anyway thanks for any advice.
Larry