Ford 2001 Explorer SportTrac User Manual page 157

Driving
If a distance of 80 km (50 miles) or a speed of 56 km/h (35 mph)
must be exceeded, you must disconnect the driveshaft. Ford
recommends the driveshaft be removed/installed only by a
qualified technician. See your local dealer for driveshaft
removal/installation.
Improper removal/installation of the driveshaft can cause
transmission fluid loss, damage to the driveshaft and internal
transmission components.
In case of a roadside emergency with a disabled vehicle (without access
to wheel dollies, a car hauling trailer or a flatbed transport vehicle), your
vehicle can be flat towed (all wheels on the ground) under the following
conditions:
• Release the parking brake.
• Turn the ignition to the OFF position.
• Place the transmission in N (Neutral).
• Do not exceed a distance of 80 km (50 miles).
• Do not exceed 56 km/h (35 mph) vehicle speed.
RWD vehicles with 4x4 electronic shift transfer case and automatic
transmission
Regarding recreational towing or having your vehicle towed, 4x4 vehicles
with electronic shift on the fly cannot be towed with any wheels on the
ground (with the exception of moving it as a disabled vehicle off the
road out of traffic).
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