Many SportTrac's could be flat towed following a routine to get the electronic transfer case into Neutral.
BUT!!! I can't recommend a Explorer/Ranger/SportTrac with the 4.0L OHC V6 engine. It's a modified 4.0L Pushrod engine where the camshaft is replaced with a drive that passes through the engine. One OHC cam drive chain is on the front of the engine and one is on the REAR. Rear where it can't be accessed with transmission attached to engine and/or engine in the vehicle. Doesn't show up till well past 100,000 miles. When the cam drive fails, and most do, the truck isn't worth fixing. This was OK when they were new and many new owners traded theirs before the issue surfaced. They're old enough now that many running engines will have or be close to this issue, and many donor engines will also have it. An automotive tinkerer might be able to pull the job off as a labor of love. Rest of us, NO.
The 4.6L OHC V8 does NOT have this design.
The GM's (S-10, Sonoma, Colorado, Canyon) with 4x4 automatic are set up with a Neutral mode in their electronic transfer cases and are towable.
But as always, CHECK OWNER's MANUAL
If God's Your Co-Pilot Move Over, jd
2003 Jayco Escapade 31A on 2002 Ford E450 V10 4R100 218" WB