Already did that. The issue is not a level issue, but a right left issue. It basically sticks out farther on the passenger side than on the driver side. Again this isn't a big deal, but it does bother me a bit.
Mine was off center a bit and I took a sledge hammer and knocked the main bracket over to the side a bit and everything lined up good after that. It still sticks out a little bit on the passenger side, but not as bad. ARB bumpers take a bit of fussing around to get them to fit just the way you want. I took me about 2 weeks to get the bumper to sit just the way I wanted it too. unbolting and hammering. I also made some holes a little bit bigger to alow for a bit more adjustment.