Interesting that you can only get the 9,200 Max Towing on a Standard 3.31 Rear Axle with optional HD Tow Package (Non-EL model, 4x2 or 4x4 only).

Once you go to the 3.73 rear the Max Tow rating Drops...

9,050 (non-EL 4x4) with 3.73 optional rear and optional HD Tow

9,000 (EL 4x2) with 3.73 standard rear and optional HD Tow
8,750 (EL 4x4) with 3.73 standard rear and optional HD Tow

Without the HD Tow Package ALL Expeditions Max Tow is ONLY 6,000