Didn't all Expys come with some sort of hitch and wiring. In the manual, on page 239, it says this:
Your vehicle is equipped with heavy duty trailer tow wiring. An electrical
connector is provided under the instrument panel for installing a
customer-supplied electric brake controller. A Class I (4–pin) electrical
connector and Class II/III/IV (7–pin) electrical connector are provided at
the hitch.
On the following page, there is the table of what you can tow.
4x2
4.6L | Maximum GCWR - kg (lbs.)4762 (10500) | Trailer weight
range (0 -maximum) kg (lbs.) 0-2268 (0-5000)
5.4L | Maximum GCWR - kg (lbs.)6577 (14500) | Trailer weight
range (0 - maximum) kg (lbs.) 0–4060 (0–8950)
4x4
4.6L | Maximum GCWR - kg (lbs.)4853 (10700) | Trailer weight
range (0 - maximum) kg (lbs.)0-2268 (0-5000)
5.4L | Maximum GCWR - kg (lbs.)6577 (14500) | Trailer weight
range (0 - maximum) kg (lbs.)0–3924 (0–8650)
Maximum frontal area of trailer is 5.6 square meters (60 square feet)