FORD 2012 F-250 - Manual (Page 207)

The SuperCab rear seat has three straps behind the top of the seat back
that function as both routing loops for the tether straps and anchor loops.
The tether strap anchors in your vehicle are in the following positions
(shown from top view):
• F-Series Regular Cab
• F-Series SuperCab
• F-Series Crew Cab
Seating and Safety Restraints
207
2012 F-250/350/450/550 (f23)
Owners Guide, 4th Printing
USA (fus)