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It is important that the vehicle does not exceed any of its
ratings — GCWR, GVWR, RGAWR, Maximum Trailer
Rating or Tongue Weight. The only way to be sure it is
not exceeding any of these ratings is to weigh the vehicle
and trailer.
Total Weight on the Vehicle’s Tires
Be sure the vehicle’s tires are inflated to the upper limit
for cold tires. These numbers can be found on the
Certification label or see Loading the Vehicle on
page 4-30 for more information. Make sure not to go
over the GVW limit for the vehicle, or the GAWR,
including the weight of the trailer tongue. If using a
weight distributing hitch, make sure not to go over the
rear axle limit before applying the weight distribution
spring bars.
Hitches
It is important to have the correct hitch equipment.
Crosswinds, large trucks going by and rough roads are
a few reasons why the right hitch is needed.
• The rear bumper on the vehicle is not intended
for hitches. Do not attach rental hitches or other
bumper-type hitches to it. Use only a frame-mounted
hitch that does not attach to the bumper.
• Will any holes be made in the body of the vehicle
when the trailer hitch is installed? If so, be sure to
seal the holes when the hitch is removed. If they
are not sealed, deadly carbon monoxide (CO) from
the engine’s exhaust can get into the vehicle.
See Engine Exhaust on page 2-36. Sealing the
holes will also prevent dirt and water from entering
the vehicle.
Safety Chains
Always attach chains between the vehicle and the
trailer. Cross the safety chains under the tongue of
the trailer to help prevent the tongue from contacting
the road if it becomes separated from the hitch.
Instructions about safety chains may be provided by
the hitch manufacturer or by the trailer manufacturer.
Follow the manufacturer’s recommendation for
attaching safety chains and do not attach them to
the bumper. Always leave just enough slack so the
rig can turn. Never allow safety chains to drag on
the ground.
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