I'm using a world aluminum block. I'll try to get a better picture of the drivers side mount. The mount bottoms out on the k member, which is preventing the insulator part of the mount from sitting flush. The strange part though is that the bolt that attaches that mount to the k member lines up perfectly with the little opening in the k member where it slides through. If the mount was to sit flush, I'm not sure if the bolt would line up with the opening where you would tighten it from.