FORD 2008 Explorer Sport Trac v.1 - Manual (Page 210)

Your vehicle has LATCH anchors for child seat installation at the
following seating positions.
Never attach two LATCH child safety seats to the same anchor.
In a crash, one anchor may not be strong enough to hold two
child safety seat attachments and may break, causing serious injury or
death.
The lower anchors for child seat
installation are located at the rear
section of the second row seat
between the cushion and seatback.
The anchors on the 2nd row outboard seats are provided only to install
child seats at the outboard seats. DO NOT install a child seat at the
center 2nd row seat using LATCH attachments (rigid or mounted on belt
webbing) mounted to the inboard lower anchors at the outboard seats. If
you install a child seat at the center 2nd row position, use the vehicle
belt and the top tether anchor.
Follow the child seat manufacturer’s instructions to properly install a
child seat with LATCH attachments. The plastic LATCH guides can be
obtained from an authorized dealer. They snap onto the LATCH lower
anchors in the seat to help attach a child seat with rigid attachments.
The guides hold the seat trim away to expose the anchor and make it
easier to attach some child seats.
2008 07+ Explorer Sport Trac (esp)
Owners Guide (post-2002-fmt)
USA (fus)
Seating and Safety Restraints
210