I did plan for the upper front part to be detachable from the lower part but it just didn't make sense to go through the trouble because it can come off in one complete piece. I can also use the tabs I had planned for that to mount lights or horns or whatever.
Here is another view so you can see the main bumper mounts that I threw on there. These aren't measured but when I put the bumper in place I just welded them where they needed to be. I'll also be completing the welds on the lower frame brackets later on when I drive the truck to my friends shop to use his welder on em. At least I didn't do this before because I have to leave open space to secure the nuts to the bolts that come down from above... and I had to weld on the bumper support as well. So boxing them in is best done when everything is mounted.
