GMC Yukon 2012 Owner's Manual page 353

Some vehicles are built with a
special snow plow prep package,
called RPO VYU. If the vehicle has
this option, you can add a plow to it,
provided certain weights, such as
the weights on the vehicle's axles
and the Gross Vehicle Weight
(GVW), are not 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 intended to be
carried.
The weight of items added to the
vehicle.
The total weight of any
additional cargo intended to be
carried.
Say, for example, you have a 318 kg
(700 lb) snow plow. 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.
But, even this may be too much if
there is other equipment already
adding to the weight of the vehicle.
Here are some guidelines for safely
carrying a snow plow on the vehicle:
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.
I n f o r ma t i o n P r o v i d e d b y :
Driving and Operating
Follow the snow plow
manufacturer's
recommendations regarding
rear ballast. 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 snowplow/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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