Ford 2011 F-250 Owner's Manual page 209

• High back booster seats
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.
Children and booster seats vary 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. The drawings below
also show how the lap belt should be low and snug across the child's
hips.
2011 F-250/350/450/550 (f23)
Owners Guide, 1st Printing
USA (fus)
Seating and Safety Restraints
209