After you’ve loaded your trailer, weigh the trailer
and then the tongue, separately, to see if the
weights are proper. If they aren’t, you may be able
to get them right simply by moving some items
around in the trailer.
Trailering may be limited by the vehicle’s ability to
carry tongue weight. Tongue weight cannot cause
the vehicle to exceed the GVWR (Gross Vehicle
Weight Rating) or the RGAWR (Rear Gross Axle
Weight Rating). The effect of additional weight may
reduce your trailering capacity more than the total
of the additional weight.
Consider the following example:
A vehicle model base weight is 5,500 lbs
(2 495 kg); 2,800 lbs (1 270 kg) at the front
axle and 2,700 lbs (1 225 kg) at the rear axle.
It has a GVWR of 7,200 lbs (3 266 kg),
a RGAWR of 4,000 lbs (1 814 kg) and a
GCWR (Gross Combination Weight Rating) of
14,000 lbs (6 350 kg).
The trailer rating should be:
You can expect tongue weight to be at least
10 percent of trailer weight (850 lbs (386 kg)) and
because the weight is applied well behind the
rear axle, the effect on the rear axle will be
greater than just the weight itself, as much as
1.5 times as much. The weight at the rear
axle could be 850 lbs (386 kg) X 1.5 = 1,275 lbs
(578 kg). Since the rear axle already weighs
2,700 lbs (1 225 kg), adding 1,275 lbs (578 kg)
brings the 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).
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Summary of Contents for 2007 Rainier
Page 6: ...These are some examples of symbols that may be found on the vehicle 6 ...
Page 88: ... NOTES 88 ...
Page 151: ... NOTES 151 ...
Page 152: ...Instrument Panel Overview 152 ...
Page 368: ...When you open the hood on the 5 3L V8 engine here is what you will see 368 ...
Page 492: ...Engine Drive Belt Routing 4 2L V6 Engine 5 3L V8 Engine 492 ...