FORD 2007 Explorer Sport Trac v.2 - Manual (Page 166)

Attaching child safety seats with tether straps
Most new forward-facing child safety seats include a tether strap which
goes over the back of the seat and hooks to an anchoring point. Tether
straps are available as an accessory for many older safety seats. Contact
the manufacturer of your child seat for information about ordering a
tether strap.
The rear seats of your vehicle are equipped with built-in tether strap
anchors located behind the seats as described below.
The tether anchors in your vehicle are located behind sliding covers
marked with the tether anchor symbol (shown with title).
The tether strap anchors in your vehicle are in the following positions
(shown from top view):
Attach the tether strap only
to the appropriate tether
anchor as shown. The tether strap
may not work properly if attached
somewhere other than the correct
tether anchor.
1. Position the child safety seat on the rear seat cushion.
2. Route the child safety seat tether strap over the back of the seat.
For vehicles with adjustable head restraints, route the tether strap under
the head restraint and between the head restraint posts, otherwise route
the tether strap over the top of the seatback.
2007 07+ Explorer Sport Trac (esp)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
166