Gross Axle Weight Rating (GAWR)
Your Safety Compliance Certification Label not only gives the
GVWR, it also gives the Gross Axle Weight Rating (GAWR) which
is the maximum weight allowed on each axle system.
The rating is based on the carrying capacity of the weakest axle
and suspension component as well as other factors. This is
why it is so important to observe vehicle loading ratings.
Overloading a vehicle places severe stress on components and can
lead to shortened vehicle life or vehicle damage.
The weakest link in the suspension system defines the GAWR,
and may be the tires. Tires are rated to carry a specific maximum
load at a specific tire pressure.
When passenger car tires are installed on light trucks and
multipurpose passenger vehicles, they are rated at a 10% lower
load carrying capacity due to the differences in vehicle usages.
With the tires inflated to the specified pressure, the total weight of
your vehicle must not exceed the GVWR and GAWR specified
on the Safety Compliance Certification Label. This includes full fuel
tank(s), vehicle equipment, and occupants, as well as the cargo
load.
Gross Combined Weight Rating (GCWR)
The GCWR is the maximum allowable weight of the towing
vehicle and the loaded trailer (including all cargo and passengers).
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