Ford Freestar 2007 Owner's Manual page 170

Seating and Safety Restraints
• Those with a high back.
If, with a backless booster seat,
you cannot find a seating position
that adequately supports your
child's head, a high back booster
seat would be a better choice.
Either type can be used at any seating position equipped with
lap/shoulder belts if your child is over 40 lb. (18 kg).
Children and booster seats vary widely in size and shape. Choose a
booster that keeps the lap belt low and snug across the hips, never up
across the stomach, and lets you adjust the shoulder belt to cross the
chest and rest snugly near the center of the shoulder. The drawings
below compare the ideal fit (center) to a shoulder belt uncomfortably
close to the neck and a shoulder belt that could slip off the shoulder.
If the booster seat slides on the vehicle seat, placing a rubberized mesh
sold as shelf or carpet liner under the booster seat may improve this
condition.
170
2007 Freestar (win)
Owners Guide (post-2002-fmt)
USA (fus)