Dub can give better details but it was something like this:
We couldn't get the hitch to mate up flush with the rear cross member. The forward edge of the angle iron was hitting the gas tank skid plate (or that area). So he was grinding down that edge. That was successful.
But after we got it flush and bolted down, we couldn't get the bottom portion of the rear cladding back in far enough to line up with the bottom bolts. So he was grinding down that front edge hoping to allow the cladding to tuck in and match up with the bolt holes. He didn't want to compromise the integrity of the angle iron by grinding too much off, so he ended up having to leave the bottom bolts off. It's not going anywhere since he got all the others lined up and reinstalled. It's just those 3 or 4 on the bottom that aren't installed.
The cladding looks completely flush, despite missing those few bolts.