I am getting things back together. After I reinstalled the e-Brake asy, I remembered this piece that was bolted to the skid plate under the drum. I can't find any reference to it. It appears to protect the drum? It bolts to the skid plate with 4 carriage bolts. The plate is cut for the bolts. It seems like there is something missing in the back. There are two holes that appear to have a purpose. Any ideas?