I don't think I can be of much help. I do not know the exact year of the
brakes from the Explorer but I suspect somewhere in the early 90's. They
are Explorer calipers. They had a parking brake inside but I don't use it.
I ordered my chassis as a roller so the brakes were installed already. I
can't say if I have a custom bracket or not. If Explorers have 9" rears
then I suspect they would bolt right on. Check with your Ford dealers
mechanic.
There may be some pics on my build site
http://www.priveye.com/cobra.htm
You may try calling A&C up in Buffalo. Maybe they can tell you what they use.
Sorry I can't be of more help,
Roscoe