Subman, This refers to SUBFRAME mounts, but this might help you
I looked in my AST tool book, and it looks like the installer is a bolt with a cylindrical nut (take a nut and put washers on it, like thick fender washers, then it looks like it has a rubber nut on the end, again use washers. I can fax it to you an you can post it. It is 75 plus shipping. It really looks like a 5 dollar tool.