FORD 2003 Explorer Sport Trac v.3 - Manual (Page 156)

WRECKER TOWING
If you need to have your vehicle towed, contact a professional towing
service or, if you are a member of a roadside assistance program, your
roadside assistance service provider.
Ford recommends your vehicle be towed with a wheel lift or flatbed. Do
not tow with a slingbelt. Ford Motor Company has not approved a
slingbelt towing procedure.
Roadside Emergencies
156