FORD 1998 Ranger - Manual (Page 58)

front seating position, secure the tether strap to the webbing of the
buckled right rear lap belt.
You can attach a tether strap anchor bracket to the cab inner back panel
by using a tether anchor kit (613D74) available at no charge from any
Ford dealer.
Do not install a child seat in a center facing jump seat.
Tether anchorage hardware
Tether anchorage hardware kits (part number 613D74) including
instructions, may be obtained at no charge from any Ford or
Lincoln-Mercury dealer.
Tighten the anchor according to specifications. Otherwise, the
safety seat may not be properly secured and the child may be
injured in a sudden stop or collision.
Seating and safety restraints
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