Trying to refurbish my old favorite Mudman. However, I've run into some trouble figuring out which part number to order through pacparts. The picture below is the piece I need replaced. There's a screw from one of the straps broken off into the mounts making it so I can't screw in a strap tightly. I went to the pacparts website and am trying to figure out what the part is named. Obviously, I'll need the entire piece which i think is named "case center". Part #91043187580 Would that sound about right to anyone who has replaced theirs?