The bumper mounting brackets had rivets in them, but some were broken. The bolts that mounted the bumper weren't original either, some were square headed instead of carriage head. A few of the bumper mounting studs in the frame were broken off, so I'm thinking the bumper was hit at some point in the past.
I was able to drill into the old broken off studs and used a bit if heat to loosed them up and back them out.
I cleaned up the bumper mounting brackets with my media blaster and them powder coated them myself. I took the bumper to a local shop that blasted it and powder coated it. It was too big for me to do. I think it all turned out pretty good.
When I reattached it all, I used some short bolts in place of the original rivets. They're not very noticeable under the front grille.
