Page 86 of 160
Trailer tow table (4x4 automatic transmission)
Engine Rear
axle
ratioMaximum
GCWR-kg
(lbs.)Maximum
trailer
weight-kg (lbs.)Maximum
frontal area of
trailer-m
2(ft2)
Regular Cab
3.0L 3.73 3 401 (7 500) 0-1 741 (0-3 840) 4.64 (50)
3.0L 4.10 3 628 (8 000) 0-1 969 (0-4 340) 4.64 (50)
4.0L 3.27 3 401 (7 500) 0-1 724 (0-3 800) 4.64 (50)
4.0L 3.73 4 309 (9 500) 0-2 631 (0-5 800) 4.64 (50)
Regular Cab (Splash)
3.0L 3.73 3 401 (7 500) 0-1 733 (0-3 820) 4.64 (50)
3.0L 4.10 3 628 (8 000) 0-1 960 (0-4 320) 4.64 (50)
4.0L 3.27 3 401 (7 500) 0-1 706 (0-3 760) 4.64 (50)
4.0L 3.73 4 309 (9 500) 0-2 613 (0-5 760) 4.64 (50)
SuperCab
3.0L 3.73 3 401 (7 500) 0-1 669 (0-3 680) 4.64 (50)
3.0L 4.10 3 628 (8 000) 0-1 896 (0-4 180) 4.64 (50)
4.0L 3.27 3 401 (7 500) 0-1 651 (3 640) 4.64 (50)
4.0L 3.73 4 309 (9 500) 0-2 558 (0-5 640) 4.64 (50)
SuperCab (Splash)
3.0L 3.73 3 401 (7 500) 0-1 660 (0-3 660) 4.64 (50)
3.0L 4.10 3 628 (8 000) 0-1 887 (0-4 160) 4.64 (50)
4.0L 3.27 3 401 (7 500) 0-1 633 (0-3 600) 4.64 (50)
4.0L 3.73 4 309 (9 500) 0-2 540 (0-5 600) 4.64 (50)
For high altitude operation, reduce GCW by 2% per 300 meters
(1 000 ft.) of elevation.
For definition of terms used in this table, seeVehicle loadingearlier
in this chapter.
To determine maximum trailer weight designed for your vehicle, see
Calculating the loadearlier in this chapter.
Maximum trailer weight is shown. The combined weight of the
completed towing vehicle (including hitch, passengers and cargo) and
the loaded trailer must not exceed the Gross Combined Weight Rating
(GCWR).
Driving
86
Page 87 of 160
Do not exceed the GVWR or the GAWR specified on the Safety
Compliance Certification Label.
Towing trailers beyond the maximum recommended gross trailer
weight could result in engine damage, transmission/axle damage,
structural damage, loss of control, and personal injury.
Preparing to tow
Use the proper equipment for towing a trailer, and make sure it is
properly attached to your vehicle. See your dealer or a reliable trailer
dealer if you require assistance.
Hitches
For towing trailers up to 907 kg (2 000 lb), use a weight carrying hitch
and ball which uniformly distributes the trailer tongue loads through the
underbody structure. Use a frame-mounted weight distrubuting hitch for
trailers over 907 kg (2 000 lb).
Do not install a single or multi-clamp type bumper hitch, or a hitch
which attaches to the axle. Underbody mounted hitches are acceptable if
they are installed properly. Follow the towing instructions of a reputable
rental agency.
Whenever a trailer hitch and hardware are removed, make sure all
mounting holes in the underbody are properly sealed to prevent noxious
gases or water from entering.
Safety chains
Always connect the trailer's safety chains to the vehicle. To connect the
trailer's safety chains, cross the chains under the trailer tongue and allow
slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Trailer brakes
Electric brakes and manual, automatic or surge-type brakes are safe if
installed properly and adjusted to the manufacturer's specifications. The
trailer brakes must meet local and Federal regulations.
Driving
87
Page 88 of 160
Do not connect a trailer's hydraulic brake system directly to your
vehicle's brake system. Your vehicle may not have enough
braking power and your chances of having a collision greatly increase.
The braking system of the tow vehicle is rated for operation at the
GVWR not GCWR.
Trailer lamps
Trailer lamps are required on most towed vehicles. Make sure your
trailer lamps conform to local and Federal regulations. See your dealer or
trailer rental agency for proper instructions and equipment for hooking
up trailer lamps.
Using a step bumper
The optional step bumper is equipped with an integral hitch and requires
only a ball with a 19 mm (3/4 inch) shank diameter. The bumper has a
907 kg (2 000 lb.) trailer weight and 91 kg (200 lb.) tongue weight
capability.
The rated capcities (as shown in this guide) for trailer towing with the
factory bumper are only valid when the trailer hitch ball is installed
directly into the ball hole in the bumper. Addition of bracketry to either
lower the ball hitch position or extend the ball hitch rearward will
significantly increase the loads on the bumper and its attachments. This
can result in the failure of the bumper or the bumper attachments. Use
of any type of hitch extensions should be considered abuse.
Driving while you tow
Do not drive faster than 88 km/h (55 mph) when towing a trailer.
Speed control may shut off if you are towing on long, steep grades.
When towing a trailer:
²Use a lower gear when towing up or down steep hills. This will
eliminate excessive downshifting and upshifting for optimum fuel
economy and transmission cooling.
²Anticipate stops and brake gradually.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to the Severe Duty Schedule in your
ªService Guideº for more information.
Driving
88
Page 89 of 160
Trailer towing tips
²Practice turning, stopping and backing up in an area before starting on
a trip to get the feel of the vehicle trailer combination. When turning,
make wider turns so the trailer wheels will clear curbs and other
obstacles.
²Allow more distance for stopping with a trailer attached.
²The trailer tongue weight should be 10±15% of the loaded trailer
weight.
²After you have traveled 80 km (50 miles), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
²When stopped in traffic for long periods of time in hot weather, place
the gearshift in P (Park) (automatic transmissions) or 1 (First)
(manual transmissions) and increase idle speed. This aids engine
cooling and air conditioner efficiency.
²Vehicles with trailers should not be parked on a grade. If you must
park on a grade, place wheel chocks under the trailer's wheels.
Launching or retrieving a boat
When backing down a ramp during boat launching or retrieval,
²Do not allow the static water level to rise above the bottom edge of
the rear bumper and
²Do not allow waves to break higher than 15 cm (six inches) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter critical vehicle
components, adversely affecting driveability, emissions and reliability.
If the rear axle is submerged in water, the rear axle lubricant should be
changed. Axle lubricant quantities are not to be checked unless a leak is
suspected.
Recreational towing (all wheels on the ground)
Follow these guidelines for your specific powertrain combination to tow
your vehicle with all four wheels on the ground (such as behind a
recreational vehicle).
These guidelines are designed to ensure that your transmission is not
damaged due to insufficient lubrication.
Driving
89