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Engine Rear axle ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer weight -
lbs. (kg)
Regular Cab 4x4 w/automatic transmission
4.2L 3.55 10000 (4536) 5400 (2449)
4.6L 3.31 10500 (4763) 5800 (2631)
4.6L
13.55 11500 (5216) 6800 (3084)
4.6L23.55 11000 (4990) 6300 (2858)
5.4L 3.73 13500 (6123) 8000 (3629)
116”tires217”tires
Engine Rear axle ratio Maximum GCWR
- lbs. (kg)Maximum
trailer weight -
lbs. (kg)
Regular Cab 4x4 w/manual transmission
4.2L 3.31 7200 (3265) 2500 (1134)
4.2L 3.55 7800 (3538) 3200 (1452)
4.6L 3.31 7200 (3265) 2500 (1134)
4.6L 3.55 7800 (3538) 3100 (1406)
Engine Rear axle ratio Maximum
GCWR - lbs.
(kg)Maximum
trailer weight -
lbs. (kg)
SuperCab 4x2 w/automatic transmission
4.2L 3.31 9000 (4077) 4500 (2041)
4.2L 3.55 10000 (4536) 5500 (2495)
4.6L 3.08 10000 (4536) 2000 (907)
4.6L 3.31 10500 (4763) 5900 (2676)
4.6L 3.55 11500 (5216) 6900 (3130)
5.4L 3.73 13500 (6123) 8200 (3719)
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Engine Rear axle ratio Maximum GCWR
- lbs. (kg)Maximum
trailer weight -
lbs. (kg)
SuperCab 4x2 w/manual transmission
4.2L 3.08 6500 (2944) 2000 (907)
4.2L 3.55 7800 (3538) 3300 (1497)
4.6L 3.08 6500 (2944) 2000 (907)
4.6L 3.31 7200 (3266) 2600 (1179)
4.6L 3.55 7800 (3538) 3200 (1451)
Engine Rear axle ratioMaximum
GCWR - lbs.
(kg)Maximum
trailer weight -
lbs. (kg)
SuperCab 4x4 w/automatic transmission
4.6L 3.31 10500 (4763) 5500 (2495)
4.6L
13.55 11500 (5216) 6500 (2948)
4.6L23.55 11000 (4990) 6000 (2722)
5.4L 3.73 13500 (6123) 7800 (3538)
116”tires217”tires
Engine Rear axle ratio Maximum GCWR
- lbs. (kg)Maximum
trailer weight -
lbs. (kg)
SuperCab 4x4 w/manual transmission
4.6L 3.31 7200 (3266) 2300 (1043)
4.6L 3.55 7800 (3538) 2900 (1315)
Trailer frontal area considerations:
•Not to exceed towing vehicle frontal area without Class III trailer
towing package
•Not to exceed 60 square feet (5.52 square meters) with Class III
trailer towing package
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.
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Hitches
Do not use hitches that clamp onto the vehicle’s bumper or attach to the
axle. You must distribute the load in your trailer so that 10%–15% of the
total weight of the trailer is on the tongue.
Load equalizing hitch
When hooking up a trailer using a load equalizing hitch, always use the
following procedure:
1. Park the unloaded vehicle on a level surface. With the ignition on and
all doors closed, allow the vehicle to stand for several minutes so that it
can level.
2. Measure the height of a reference point on the front and rear bumpers
at the center of the vehicle.
3. Attach the trailer to the vehicle and adjust the hitch equalizers so that
the front bumper height is within
1⁄2”(13 mm) of the reference point.
After proper adjustment, the rear bumper should be no higher than in
Step 2.
Note:Adjusting an equalizing hitch so the rear bumper of the vehicle is
higher than it was unloaded will defeat the function of the load
equalizing hitch and may cause unpredictable handling.
Safety chains
Always connect the trailer’s safety chains to the frame or hook retainers
of the vehicle hitch. 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.
Do not attach safety chains to the bumper.
Trailer brakes
Electric brakes and manual, automatic or surge-type trailer brakes are
safe if installed properly and adjusted to the manufacturer’s
specifications. The trailer brakes must meet local and Federal
regulations.
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.
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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 all running
lights, brake lights, turn signals and hazard lights are working. See your
dealer or trailer rental agency for proper instructions and equipment for
hooking up trailer lamps.
Using a step bumper (if equipped)
The rear bumper is equipped with an integral hitch and only requires a
ball with a one inch (25.4 mm) shank diameter. The bumper has a 5,000
lbs. (2,270 kg) trailer weight and 500 lbs. (227 kg) tongue weight
capacity.
If it is necessary to relocate the trailer hitch ball position, a
frame-mounted trailer hitch must be installed.
Driving while you tow
When towing a trailer:
•Turn off the speed control. The speed control may shut off
automatically when you are towing on long, steep grades.
•Consult your local motor vehicle speed regulations for towing a trailer.
•To eliminate excessive shifting, use a lower gear. This will also assist
in transmission cooling. (For additional information, refer to the
Understanding the positions of the 4–speed automatic
transmissionsection in this chapter.
•Anticipate stops and brake gradually.
•Do not exceed the GCWR rating or transmission damage may occur.
Servicing after towing
If you tow a trailer for long distances, your vehicle will require more
frequent service intervals. Refer to yourScheduled Maintenance Guide
for more information.
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Trailer towing tips
•Practice turning, stopping and backing up 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.
•Allow more distance for stopping with a trailer attached.
•The trailer tongue weight should be 10–15% of the loaded trailer
weight.
•After you have traveled 50 miles (80 km), thoroughly check your
hitch, electrical connections and trailer wheel lug nuts.
•To aid in engine/transmission cooling and A/C efficiency during hot
weather while stopped in traffic, place the gearshift lever in P (Park)
(automatic transmission) or N (Neutral) (manual transmissions).
•Vehicles 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
Disconnect the wiring to the trailer before backing the trailer
into the water. Reconnect the wiring to the trailer after the
trailer is removed from the water.
When backing down a ramp during boat launching or retrieval:
•do not allow the static water level to rise above the bottom edge of
the rear bumper.
•do not allow waves to break higher than 6 inches (15 cm) above the
bottom edge of the rear bumper.
Exceeding these limits may allow water to enter vehicle components:
•causing internal damage to the components.
•affecting driveability, emissions and reliability.
Replace the rear axle lubricant any time the axle has been submerged in
water. Rear axle lubricant quantities are not to be checked or changed
unless a leak is suspected or repair required.
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Fuse/Relay
LocationFuse Amp
RatingPassenger Compartment Fuse
Panel Description
8 5A Radio, GEM
9—Not used
10—Not used
11 30A Front washer pump relay, Wiper
run/park relay, Wiper HI/LO relay,
Windshield wiper motor
12—Not used
13 20A Stop lamp switch (Lamps),
Turn/Hazard flasher
14 15A Battery saver relay, Interior lamp
relay
15 5A Stop lamp switch (speed control,
brake shift interlock), GEM
16 20A Headlamps (hi beams), Cluster
(hi beam indicator)
17—Not used
18 5A Instrument illumination (dimmer
switch power)
19—Not used
20 5A Audio, GEM, PCM, Transmission
range sensor
21 15A DTR sensor, Clutch switch,
Starter relay, I/P fuse 20
22 10A Air bag module, Passenger air bag
deactivation module
23 10A Trailer tow battery Charge relay,
Turn/Hazard flasher, 4x4
solenoids, 4x4 relays, Overhead
console, 4–Wheel Anti-lock Brake
System (4WABS) module
24 10A Function selector switch assembly
25—Not used
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The high-current fuses are coded as follows.
Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
1 20A * Power point
2 30A* Powertrain Control Module (PCM)
3 30A* Main light switch, Headlamp relay,
Multifunction switch
4—Not used
5 20A* Trailer tow back-up/park lamps
6 15A* Main light switch, Park lamp relay
7 20A* Horn
8 15A* Power door locks, Central
Security Module (CSM), Lock
relays
9 15A* Daytime Running Lamps (DRL),
Fog lamps
10 20A* Fuel pump
11 20A* Alternator field
12—Not used
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Fuse/Relay
LocationFuse Amp
RatingPower Distribution Box
Description
13 15A* A/C clutch
14—Not used
15—Not used
16 15A* Bi-fuel injector module, fuel
selector switch and alternative
fuel injectors (Bi-fuel vehicles
only)
17 2A* Speed control
18 15A* PCM, Fuel injectors, Fuel pump
relay, Mass air flow sensor
19 10A* Trailer/Camper adapter (right
stop/turn lamp)
20 10A* Trailer/Camper adapter (left
stop/turn lamp)
21—Not used
22—Not used
23 15A* HEGO sensor, Automatic
transmission
24—Not used
101 30A** Trailer tow battery charge
102 50/20A** Four-wheel Anti-lock Brake
System (4WABS)
module/Rear-wheel Anti-lock
Brake System (RABS) module,
Ignition switch
103 50A** Central junction box
104 30A** 4x4 shift motor & clutch
105 40A** Climate control front blower
106 20A** Intercooler pump (supercharged
engine only)
107—Not used
108 30A** Trailer tow electric brake
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