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Engine
Rear axle
ratio
Maximum
GCWR - lb. (kg)
Trailer weight
range
(0 - maximum)
lb. (kg)
Navigator L 4x4
5.4L with
standard trailer
tow package
All 12500 (5669) 0–6000 (0–2721)
5.4L with
optional trailer
tow package
All 15000 (6803) 0–8550 (0–3878 )
Note: For vehicles not equipped with the optional trailer tow package,
the maximum frontal area of trailer should not exceed the frontal area
of the vehicle (3.4 square meters [36.5 square feet]).
Note: For vehicles equipped with the optional trailer tow package, the
maximum frontal area of trailer should not exceed 5.6 square meters
(60 square feet).
Do not exceed the maximum loads listed on the Safety Compliance
Certification label. For load specification terms found on the label, refer
to Vehicle loading in this chapter. Remember to figure in the tongue
load of your loaded trailer when figuring the total weight.
Towing trailers beyond the maximum recommended gross trailer
weight exceeds the limit of the vehicle and could result in
engine damage, transmission damage, structural damage, loss of
control, vehicle rollover and personal injury.
Integrated hitch rating
The standard integrated hitch has two ratings depending on mode of
operation:
• Weight carrying - requires a draw bar and hitch ball. The draw bar
supports all the vertical tongue load of the trailer.
• Weight distributing - requires an aftermarket weight distributing
system which includes draw bar, hitch ball, spring bars and snap-up
brackets. The vertical tongue load of the trailer is distributed between
the truck and the trailer by this system.
2008 Navigator (nav)
Owners Guide (post-2002-fmt)
USA (fus)
Tires, Wheels and Loading
226