FORD 1998 E-150 - Manual (Page 55)

Front passenger seating position
The front passenger seating position does not require any tether
hardware. The tether can be attached directly to the rear of the front
seat.
1. Position the child safety seat on
the front right-hand passenger seat.
2. Adjust the front right-hand
passenger seat full forward.
3. Route the child safety seat tether
strap over the back of the front
right-hand passenger seat as shown.
Seating and safety restraints
55