Chevrolet 2007 HH7 Owner's Manual page 281

total to 3,975 lbs (1 803 kg). This is very close to,
but within the limit for RGAWR as well. The
vehicle is set to trailer up to 8,500 lbs (3 856 kg).
But let's say your specific vehicle is equipped
with some of the latest options and you have a
front seat passenger and two rear seat passengers
with some luggage and gear in the vehicle as
well. You may add 300 lbs (136 kg) to the
front axle weight and 400 lbs (181 kg) to the rear
axle weight. Your vehicle now weighs:
Weight is still below 7,200 lbs (3 266 kg) and you
may think that you should subtract 700 additional
pounds (318 kg) from your trailering capacity to
stay within GCWR limits. Your maximum trailer
would only be 7,800 lbs (3 538 kg). You may go
further and think you must limit tongue weight to
less than 1,000 lbs (454 kg) to avoid exceeding
GVWR. But, you must still consider the effect on
the rear axle.
Because your rear axle now weighs 3,100 lbs
(1 406 kg), you can only put 900 lbs (408 kg) on the
rear axle without exceeding RGAWR. The effect of
tongue weight is about 1.5 times the actual weight.
Dividing the 900 lbs (408 kg) by 1.5 leaves you with
being able to handle only 600 lbs (272 kg) of tongue
weight. Since tongue weight is usually at least
10 percent of total loaded trailer weight, you can
expect that the largest trailer your vehicle can
properly handle is 6,000 lbs (2 721 kg).
It is important that you make sure your vehicle
does not exceed any of its ratings — GCWR,
GVWR, RGAWR, Maximum Trailer Rating
or Tongue Weight. The only way to be sure you
are not exceeding any of these ratings is to weigh
your vehicle and trailer.
Total Weight on Your Vehicle's Tires
Be sure your vehicle's tires are inflated to the upper
limit for cold tires. You will find these numbers on
the Tire-Loading Information label. See Loading
Your Vehicle on page 269. Then be sure you do not
go over the GVW limit for your vehicle, including the
weight of the trailer tongue.
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