The box was pretty dirty but most of it blew off. It came with the main lead that connects to the battery so I removed that and have some ideas for it. I then pulled some relays and fuses and started to pull the terminals from the back.
This job is not easy and requires some knowledge about how these terminals are retained. Ford does not make these fuse boxes and the terminals with the intent of ever having to service them! They are pretty much a one-way assembly and not made to come apart.
With some patience and the correct tools you can do it. Luckily I don't need the actual box, only the terminals, so I wasn't too concerned with breaking anything. I spoke with three different tech's at the dealer the other day who are all electronic and electrical specialists. They confirmed Ford does not sell or provide "service terminals" for anything in the fuse box. If there is a major problem the replace the main harness and box all together!