Chevrolet 2010 Colorado Owner's Manual page 247

There is also important loading information for
off-road driving in this manual.
Vehicle for Off-Road Driving"
Driving on page 5-13.
Remember not to exceed the Gross Axle Weight
rating (GAWR) of the front or rear axle.
Two-Tiered Loading
By positioning four 2" X 6" wooden planks across
the width of the pickup box, you can create an
upper load platform. The planks must be inserted
in the pickup box depressions. The length of
the planks must allow for at least a 2 cm (3/4 inch)
bearing surface on each end of the plank.
When using this upper load platform, be sure the
load is securely tied down to prevent it from
shifting. The load's center of gravity should be
positioned in a zone over the rear axle.
See "Loading Your
under Off-Road
Any load that extends beyond the vehicle's
taillamp area must be properly marked according
to local laws and regulations.
Remember not to exceed the Gross Axle Weight
Rating (GAWR) of the rear axle.
Add-On Equipment
When you carry removable items, you may need
to put a limit on how many people you carry
inside your vehicle. Be sure to weigh your vehicle
before you buy and install the new equipment.
Notice Overloading the vehicle may cause
:
damage. Repairs would not be covered by the
vehicle warranty. Do not overload the vehicle.
Remember not to exceed the Gross Axle
Weight Rating (GAWR) of the rear axle.
A reinforcement kit for mounting a toolbox is
recommended. See your dealer/retailer.
5-39