My guess, solid axle. FW CS most likely could provide the information, especially if you can provide the FIN number. We had an 03 Excursion with solid beam.
Clay & Pebble
2012 Providence 42 M. Spartan Chassis, 450 ISL
Ford Edge toad, RM All Terrane, TST TPMS, SMI Air Force One, RVM95....