wheelbase GMC SIERRA 2010 Owner's Manual

Front axle reserve capacity is the difference between
your the Gross Axle Weight Rating (GAWR) and the
front axle weight of the vehicle with full fuel and
passengers. Basically, it is the amount of weight that
can be added to the front axle before reaching the
front GAWR.
The front axle reserve capacity for the vehicle can be
found in the lower right corner of the Certification/Tire
label, as shown.
United StatesCanadaIn order to calculate the amount of weight any front
accessory, such as a snow plow, is adding to the front
axle, use the following formula:
(W x (A + W.B.)) /W.B.= Weight the accessory is adding
to the front axle.
Where:
W = Weight of added accessory
A = Distance that the accessory is in front of the
front axle
W.B. = Vehicle Wheelbase
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