rear disc brakes
The set up from Summit uses 87-88 Thunberbird parts.
I'm using the Scarebird adapters which uses 1979 - 1990 Cadillac Eldorado calipers and 1982 - 1987 Lincoln Continental rotors.
I believe the TSM setup it very similar to the Scarebird set up.
Yes that pic is from a Cherokee. If they work as you stated that would be awesome. You would be able to do a setup that uses all Chrysler parts, probably cheaper and uses newer parts.
Those Eldorado calipers aren't cheap.