2008 NISSAN ALTIMA wheel

2008 Nissan Towing Guide 4 Š For receiver-type hitches using a ball mount, the ball mount should be removed when not
towing.
Š If you install a hitch yourself, remember that it must be securely attached to the frame or
underbody, according to the manufacturer’s instructions. Never attach a hitch or towing
device to the vehicle axle housing. This may damage the housing, wheel bearings,
wheels, or tires.


Hitch Types


Bumper Hitch – This is a special reinforced
bumper designed to accommodate a hitch
ball.










Receiver Hitch – A receiver hitch is bolted
directly to the vehicle structure for added
strength and durability. Nissan bolt-on
receiver hitches are designed specifically for
Nissan vehicles and include the necessary
reinforcements, with ample clearance around
bumpers, frame members, etc. These hitches
allow for the removal of the ball mount when
not towing.

2008 Nissan Towing Guide 6 5th Wheel or Gooseneck Hitch – Mounted
in the bed of a pick-up and designed for
heavy-duty applications, these types of
hitches are not available from Nissan but can
be purchased from a professional supplier of
towing equipment.*
A 5th wheel or gooseneck hitch is usually
installed and adjusted to meet the
requirements of a particular trailer, but two
basic rules hold true in every case. First, the
hitch should be mounted a minimum 2 inches
forward of the rear axle centerline. Second, it
should be securely attached directly to the
truck frame. This installation should be done
by professionals only, as it is very important to
mount the hitch correctly to distribute the king
pin load for the proper load carrying and sway
control performance.

BALL MOUNT
A ball mount (also known as a drawbar or “stinger”) is a bar that holds a hitch ball and is
inserted into a receiver-type hitch. Ball mounts come in a number of weight capacities (3,500
lbs., 5,000 lbs., etc.) and sizes (1
1/4”, 2”, etc.), and can be weight-distributing or non-weight-
distributing.

HITCH BALL
A hitch ball is bolted through a ball mount or a
hitch hole in the tow vehicle’s rear bumper. The
coupler on the trailer tongue attaches over the
hitch ball.
Like ball mounts, hitch balls are available in a
number of weight capacities and sizes. Always
make sure the hitch ball selected has the proper
shank diameter and weight rating for the ball mount as well as the coupler on your trailer.
Using a 1
7/8” hitch ball in a 2” coupler, for example, could result in the trailer separating

*At this time, Titan is the only Nissan vehicle approved for 5th wheel and gooseneck trailer

towing. See your vehicle owner’s manual for details.
5th Wheel Hitch
Gooseneck Hitch
Hitch
Mount BallBall

2008 Nissan Towing Guide 7 from the tow vehicle.

The diameter of the hitch ball shank must be matched to the ball mount hole diameter. The
shank should be no more than
1/16” smaller than the hole.
To keep the hitch ball in top condition, a simple maintenance routine is recommended.
Coating it with light grease will minimize wear of both the coupler and hitch ball. Also, by
removing the hitch ball when not towing, or by protecting it with a special cover, you will help
prevent rust from forming on it.

TRAILER TONGUE
The tongue is the part of the trailer that extends forward to meet the tow vehicle, and it also
carries the coupler assembly. Knowledge of the trailer tongue load (conventional trailers) and
king pin load (5th wheel and gooseneck trailers) is critical as it can have a significant effect on
the handling of the tow vehicle. See the SPECIFICATIONS section of this guide or refer to
your vehicle owner’s manual to view the maximum conventional trailer tongue load listed for
your vehicle.

SAFETY CHAINS/CABLES
Always use suitable safety chains/cables between the tow vehicle and the trailer. If the hitch
should break or become disengaged for some reason, these chains/cables will provide an
emergency connection between the
vehicle and the trailer.
The chains/cables should be
crossed under the trailer tongue and
attached to the hitch or vehicle frame.
Crossing the chains/cables under the
tongue will help prevent the tongue
from hitting the ground should the trailer
become disconnected.
Be sure to leave enough slack in the
chains/cables to turn corners without
binding; however, note that excessive
slack will allow the chains/cables to
drag on the ground.
Do not use S-hooks for attaching, as
they may become un-hooked and are
illegal in many states. To avoid damage
Not OK
OK

2008 Nissan Towing Guide 9 a 3-wire to 2-wire power converter* must be used. A power converter of this type creates
only minimal additional demand (draw) on the vehicle lighting circuits to power the trailer
lighting.
Always check for correct operation of the turn signals, stoplights, and taillights every time
you connect a trailer for towing. Never replace vehicle fuses with fuses of a higher amperage
rating than the original.
NOTE – Improper or poor quality trailer harness wiring may affect your vehicle’s electrical
system. Use only a Nissan approved wiring harness, or consult your dealer or a professional
supplier of towing equipment for compatible equipment.

BRAKES
As with hitches, several types of braking systems are available. Most states require a separate
braking system on trailers with a loaded weight above a specific amount, therefore you should
check to ensure you comply with all regulations.

NOTE – Never connect a hydraulic trailer brake system directly to the vehicle hydraulic
brake system.

Surge Brakes – The surge brake is mounted on the trailer tongue with a hydraulic line
running to each trailer wheel. Surge brakes are activated by the trailer pushing against the
hitch when the tow vehicle is braking. Hydraulic surge brakes are common on rental trailers
and some boat trailers. In this type of system, there is no hydraulic or electric connection for
brake operation between the tow vehicle and the trailer.

Electric Trailer Brakes – Electric braking systems are activated by an electronic signal sent
from a trailer brake controller (special brake-sensing module).
If electric trailer brakes are used, Nissan recommends all-electronic actuation because with
this system it will not be necessary to tap into the tow vehicle’s hydraulic system.
For your convenience, Armada, Frontier, Pathfinder, and Titan vehicles are pre-wired to
accommodate most popular electric trailer brake controllers. A wiring harness** is either
included with your vehicle or available from your Nissan dealer. This harness provides electric
trailer brake controller input and output connections to the vehicle wiring. See a professional
supplier of towing equipment for electric trailer brake controller availability.
NOTE – Improper or poor quality trailer harness wiring may affect your vehicle’s electrical
system. Use only a Nissan approved wiring harness, or consult your dealer or a professional
supplier of towing equipment for compatible equipment.

*Armada LE, Frontier, Pathfinder, and Titan vehicles are pre-wired for trailer lighting and do not require
a converter.
**
See the SPECIFICATIONS section of this guide for wiring harness information specific to your
vehicle.

2008 Nissan Towing Guide 12 On all Nissan vehicles, the GVWR is shown on the
Federal Motor Vehicle Safety Standard (F.M.V.S.S.)
certification label located in the driver’s-side door area.
To avoid overloading the vehicle, be sure
to include the trailer tongue/king pin load as a
part of the cargo when determining how much weight
can be safely carried inside the vehicle. The weight of
the roof rack cargo should also be included.






















GROSS AXLE WEIGHT (GAW)
The Gross Axle Weight (GAW) is the maximum weight each axle (front and rear) is designed
to safely carry.
To determine the GAW, load the vehicle as you would for towing and attach the loaded
trailer. At a public scale, with the loaded trailer attached, place only the tow vehicle front
wheels on the scale to determine the actual front axle GAW. To obtain the rear axle GAW,
place all four tow vehicle wheels on the scale. From that figure, subtract the front GAW and
you’ve got the rear GAW amount.
The GAW you come up with must not exceed the Gross Axle Weight Rating (GAWR)
for your vehicle. On Nissan vehicles, the GAWR for both axles is listed on the F.M.V.S.S.
certification label.

MFD BY NISSAN MOTOR CO., LTD
DATE
GVWR
GAWR FR.
WITH

GAWR RR.
WITH
THIS VEHICLE CONFORMS TO
ALL APPLICABLE FEDERAL
MOTOR VEHICLE SAFETY
STANDARDS IN EFFECT ON
THE DATE OF MANUFACTURE
SHOWN ABOVE.
SEE OWNERS MANUAL FOR
ADDITIONAL INFORMATION.
TIRES
TIRES
TYPE: TRUCK
MODEL: 3B000
COLOR TRIM TRANS
AXLE ENGINE

RIMS AT PSI
COLD SINGLERIMS AT PSI
COLD SINGLE

F.M.V.S.S.
Certification Label

2008 Nissan Towing Guide 13










GROSS COMBINED WEIGHT (GCW)
The Gross Combined Weight (GCW) is the total weight of the tow vehicle with all
passengers, cargo, and fuel, plus the total weight of the trailer and all its cargo.
To determine the GCW, simply weigh your vehicle when fully loaded and ready to tow, and
add in the weight of the loaded trailer.
The GCW you come up with must not exceed the Gross Combined Weight Rating
(GCWR) for your vehicle. See the SPECIFICATIONS section of this guide or refer to your
vehicle owner’s manual to view the GCWR listed for your vehicle.

TRAILER TONGUE/KING PIN LOAD
The amount of weight pressing down on the tow vehicle hitch is called trailer tongue load
(conventional trailer) or king pin load (5th wheel or gooseneck trailers).
To measure trailer tongue/king pin load, place the tongue of the trailer on a scale when the
trailer is not attached to the
vehicle. A separate vehicle
jack — not the trailer jack —
should be used, as the
location of the trailer jack is
rearward of the trailer tongue
and will not give you an
accurate measurement of the
true tongue/king pin load.
Make sure the vehicle jack is
placed directly under the
trailer tongue coupler, and the tongue is set at the height/level of the tow vehicle hitch.
For proper handling, you must keep conventional trailer tongue load between 10-15% of
the actual trailer weight, within the limits of the maximum trailer tongue load allowable. For

2008 Nissan Towing Guide 14 example, to determine the proper trailer tongue load for a 1,500-lb. trailer, multiply the weight
of 1,500 lbs. by 10% to arrive at a figure of 150 lbs.
5th wheel and gooseneck trailer king pin load must be kept between 15-25% of the actual
trailer weight, within the limits of the king pin load allowable.
See the SPECIFICATIONS section of this guide or refer to your vehicle owner’s manual to
view the maximum conventional trailer tongue load listed for your vehicle.
NOTE – The vehicle weight ratings (GVWR, GAWR, GCWR, etc.) must not be
exceeded, regardless of trailer or hitch type.

HITCH & TRAILER HEIGHT
It is important that your trailer floor
and tongue ride as level as possible.
This will help prevent over-angling,
bottoming-out, and improper load
transfer. Therefore, the hitch or trailer
tongue must be adjusted during the
initial vehicle/trailer fit-up to ensure a
level ride. Ball mounts are available in
different configurations to
adjust the hitch ball height.

TIRE PRESSURE
When towing a trailer, increase tow vehicle tire pressures to the recommended cold
specifications. You will find these figures in the vehicle owner’s manual and on the tire
pressure chart located in the vehicle. Trailer tire condition, size, load rating, and inflation
pressure must be in accordance with the trailer and tire manufacturer’s specifications.


TOWING
SAFETY

Towing can dramatically alter the handling and performance characteristics of your vehicle.
Plus, it puts increased strain on the engine and drivetrain. Therefore, it is always a good idea
to approach towing from the standpoint of safety — whether you’re purchasing equipment or
actually pulling the trailer.

2008 Nissan Towing Guide 15 Always make sure your vehicle’s towing capacity is adequate for the trailer you intend to tow.
Buy or lease only quality equipment, and have it installed only by professionals. In addition, be
certain that you have all of the equipment needed for safe towing, including safety
chains/cables, electric trailer brakes, electric trailer brake controller, breakaway switch,
extended rear view mirrors, and so on. All of these items have been discussed in a previous
section of this guide.
With regard to vehicle maintenance, you should follow a more frequent schedule and
check fluid levels, pressures, tire condition, etc., more often when on the road. See your
vehicle owner’s manual for details.

LOADING YOUR TRAILER
Taking the time to load and balance your trailer properly will improve overall handling and
minimize the strain on your tow vehicle. Incorrectly loaded trailers tend to sway or swing from
side to side, upsetting vehicle handling. Careful loading and balancing can help eliminate
these problems.
As mentioned earlier, conventional trailer tongue load must fall between 10-15% of the
total trailer weight. King pin load — if using a 5th wheel or gooseneck trailer — must be
between 15-25% of the total trailer weight.
Excessive tongue/king pin load can actually
push down the vehicle in back, lifting the front
wheels to a point where traction, steering
response, and braking are severely reduced.
Insufficient tongue/king pin load can cause
instability, which may lead to “tail wagging” or
jackknifing.
With this in mind, proper loading is extremely
important. When loading a trailer, 60% of the
total cargo weight should be positioned in the
front portion of the trailer and 40% in the back.
Then, the load should be adjusted until the proper
tongue/king pin load ratio is achieved.
The trailer load should be balanced equally
from side-to-side. Unequal side-to-side loading
can negatively affect handling and braking. Once
in place, all cargo should be firmly secured to
prevent shifting. If the load should shift abruptly
during braking or cornering, it could quickly affect