2
INSTALLATION INSTRUCTIONS
All steel and aluminum boxes must
be mounted with either Type "A" or
Type "B" brackets
Under Body Mountings
The box must be mounted as shown
or structural damage will occur to
the box.
Stake Bed Top
Mounting
The box must be mounted with the
bottom fully supported or structural
damage will occur to the box.
A third type "A" bracket should be
used in the center 24" deep Underbeds
A third cross brace should be used
in the center of the Type "B" bracket
when mounting a 24" deep Underbed
Type "A" brackets to be mounted
at the front and rear edge of the
Underbed Box
24-0187
Due to the various chassis that this product can be used on, contact a truck equipment dealer for
mounting procedures and support brackets or angles. If you decide to make these brackets or angles
yourself,
do not use any steel less than 1/4” in thickness.