Id say somebody was trying to do a custom long arm setup. You could custom make or even modify an original crossmember to work on there. Looks like they were gonna use those 4 bolt holes on the LCA mounts to bolt up the crossmember. A little fabrication work and you can make something work. Id figure out how much lift if actually on it. Might be too high to get away with a transfer case drop.
1996 Jeep Cherokee- Project-- Rusty's 8in long arm, SYE kit, Teraflex driveshaft, Cragar soft 8's 15x10 with 33x12.5 Firestone Destination MT's, Eaton Tru Trac in the front