SuperBus do you have heavy duty trailer tow with the 2 speed transfer case (i.e. do you have a 4x4 low position)? The two speed transfer case does have a neutral position (owner's manual has instructions on how to achieve neutrla) so can be flat towed as indicated in Ford towing guides and your owner's manual. Keep in mind that when the transfer case is in neutral you are bypassing the park pawl in the transmisison so use of wheel chocks to secure vehicle is advisable to prevent unintended roll-away.
On the one speed transfer case there is not a neutral position so not flat towable without aftermarket driveline disconnects.
