GMC CHEVROLET Silverado 6500HD 2019 Owner's Manual page 268

Caution (Continued)
installed. The vehicle can be
damaged if either the front or rear
axle ratings or the Gross Vehicle
Weight Rating (GVWR) are
exceeded.
The plow the vehicle can carry
depends on many things, such as:
The options the vehicle came
with, and the weight of those
options.
The weight and number of
passengers to be carried.
The weight of items added to the
vehicle, like a tool box or
truck cap.
The total weight of any
additional cargo to be carried.
For example, if the snow plow
weighs 318 kg (700 lb), the total
weight of all occupants and cargo
inside the cab should not exceed
135 kg (300 lb). This means that you
may only be able to carry one
passenger. Even this may be too
much if there is other equipment
already adding to the weight of the
vehicle.
To safely carry a snow plow on the
vehicle:
Follow all aftermarket snow plow
manufacturer s instructions for
the operation and transportation
of the snow plow.
With a snow plow attached, the
engine coolant temperature
gauge may show a higher
temperature than while driving
without one. The snow plow
could block the airflow to the
radiator. This could be more
noticeable as vehicle speed
increases. At speeds above
72 km (45 mph), this may cause
the engine coolant to overheat.
To increase the airflow, move the
snow plow blade postion.
If driving more than 24 km
(15 mi), angle the plow blade
position.
Driving and Operating
Make sure the weight on the
front and rear axles does not
exceed the axle rating for each.
For the front axle, if more cargo
or passengers must be carried,
appropriate counter ballast must
be installed rear of the rear axle.
Counter ballast must be properly
secured so it will not move
during driving.
Rear ballast may be required to
ensure a proper front and rear
weight distribution ratio, even
though the actual weight at the
front axle may be less than the
front axle rating.
The snow plow manufacturer or
installer can assist in
determining the amount of rear
ballast required, to help make
sure the snow plow/vehicle
combination does not exceed
the GVW rating, the front and
rear axle ratings, and the front
and rear weight distribution ratio.
The total vehicle must not
exceed the GVW rating.
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