GMC 2005 Sierra Denali Owner's Manual page 360

A. Wing Nut
B. Wheel Blocks
C. Retaining Bracket
and Wing Nut
D. Wheel Wrench and
Extensions
5-88
E. Storage Bag
F. Mounting Bracket
G. Bottle Jack
H. Retaining Hook
To store the jack and jack tools, do the following:
1. Put the jack tools in the tool bag and place them in
the retaining bracket.
2. Tighten down the wing nut.
3. Assemble the wheel blocks and bottle jack together
with the wing nut and retaining hook.
4. Position the jack in the mounting bracket. Position
the holes in the base of the jack onto the pin in the
mounting bracket.