FORD 2010 Expedition v.3 - Manual (Page 160)

To adjust the position of the
cross-bar (if equipped):
1. Loosen the thumbwheel at both
ends of the cross-bar (both
cross-bars are adjustable).
2. Slide the cross-bar to the desired
location.
3. Firmly retighten the thumbwheels
at each end of the cross-bar.
Be sure to check that the thumbwheels are tight each time load is added
or removed from the roof rack, and periodically while traveling.
Always ensure that the load is secure before traveling.
Ford Motor Company recommends loading the roof rack only when
equipped with (optional) crossbars, to avoid unintended damage to the
roof panel.
Driver Controls
160
2010 Expedition (exd)
Owners Guide, 3rd Printing
USA (fus)