I've almost completed installing an ARB bumper on my 4th gen, but I'm confused about the holes that have to be drilled to lock the bumper in place. I drilled and bolted the two holes (one on each side) towards the top of the bumper mounting bracket. These are easy to locate because of the pilot holes in the mounting brackets that are right up front next to the bumper mounting bolts.

The problem is that the instructions refer to drilling two other holes in the "uprights", and I've got two bolts left, but I can't figure out where the hole location is supposed to be. Can someone give me some guidance on this, maybe a picture showing where the other two holes get drilled?

 

Don't all speak at once lol

Nevermind anyways, I finally found the other pilot hole towards the lower end of the bumper mounts. The first was in the brackets that attach to the vehicle, and the other pilot hole was in the brackets built into the bumper itself, so you end up with a pilot hole on either side of one of the bumper mounts. I wasn't seeing one of them because I was looking all over the other side of the mount where the first pilot hole was visible.