I can't verify it, Rich, but I remember reading back when the '97 make-over was discussed in the magazines that one of the reasons given for the dashboard redesign (aside from dual airbags) was to allow the XJ and the TJ to share a modular instrument cluster. I had the impression back then, as I recall, that DCX was using the same cluster in a number of vehicles, but I wasn't interested in any other Mopar vehicles so I didn't pay any attention.
My guess is it'll work. Dunno about reconciling the odometer to the chassis, though.