Chevrolet 2008 Silverado 1500 Pickup Owner's Manual page 361

You must weigh any accessories or other
equipment that you add to your vehicle. Then,
subtract this extra weight from the CWR. This extra
weight may shorten the center of gravity zone of
your vehicle. Your dealer can help you with this.
If your slide-in camper and its load weighs
less than the CWR, the center of gravity zone for
your vehicle may be larger.
Your dealer can help you make a good
vehicle-camper match and help you determine
the CWR.
After you have loaded your vehicle and camper,
drive to a weigh station and weigh the front and rear
wheels separately. This will tell you the loads on the
axles. The loads on the front and rear axles should
not be more than either of the Gross Axle Weight
Ratings (GAWR). The total of the axle loads should
not be more than the Gross Vehicle Weight
Rating (GVWR).
Open the driver's door and look at the
Certification/Tire label to find out your vehicle's
GAWRs and GVWR.
If your vehicle has gone over the weight ratings,
move or take out some things until all the
weight falls below the ratings.
Secure loose items to prevent weight shifts that
could affect the balance of your vehicle. When the
truck-camper is loaded, drive to a scale and weigh
on the front and on the rear wheels separately to
determine axle loads. Individual axle loads should
not exceed either of the gross axle weight ratings
(GAWR). The total axle loads should not exceed
your vehicle's gross vehicle weight rating (GVWR).
These ratings are given on the vehicle certification
label attached to the rear edge of the driver's door.
See "Certification/Tire Label" under Loading Your
Vehicle on page 4-36. If weight ratings are
exceeded, move or remove items to bring all
weights below the ratings.
When you install and load your slide-in camper,
check the manufacturer's instructions.
If you want more information on curb weights,
cargo weights, Cargo Weight Rating and the
correct center of gravity zone for your vehicle, your
dealer can help you. Just ask for a copy of
"Consumer Information, Truck-Camper Loading."
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