GMC Yukon 2007 Owner's Manual page 553

2. Assemble wheel blocks (A) and jack (E)
together with the wing nut (F).
3. Position the jack (E) and wheel blocks (A) in
the driver's side trim panel over the
wheelhouse.
4. Turn the wing nut (G) clockwise until the jack
is secured tight in the mounting bracket. Be
sure to position the holes in the base of
the jack onto the pin in the mounting bracket.
5. Use the retaining bracket (C) to fasten the tool
bag (B) on the stud and turn the wing nut (D)
clockwise to secure.
6. Return the storage tray to its original stored
position.
553