Ford Mustang Owner's Manual page 119

GCW (Gross Combined Weight) – is the weight
of the loaded vehicle (GVW) plus the weight of the
fully loaded trailer.
GCWR (Gross Combined Weight Rating) – is the
maximum allowable weight of the vehicle and the
loaded trailer – including all cargo and passengers –
that the vehicle can handle without risking damage.
(Important: The towing vehicle's braking system is
rated for operation at GVWR, not at GCWR. Separate
functional brakes should be used for safe control of
towed vehicles and for trailers weighing more than
680 kg [1,500 lbs]). The GCW must never exceed
the GCWR.
Maximum Loaded Trailer Weight – is the highest
possible weight of a fully loaded trailer the vehicle
can tow. It assumes a vehicle with only mandatory
options, no cargo (internal or external), a tongue
load of 10–15% (conventional trailer) or king pin
weight of 15–25% (fifth wheel trailer), and driver
only (68 kg [150 lbs]). Consult your dealership
(or the RV and Trailer Towing Guide provided
by your dealership) for more detailed
information.
Tongue Load or Fifth Wheel King Pin Weight –
refers to the amount of the weight that a trailer
pushes down on a trailer hitch.
Examples: For a 2268 kg (5000 lbs.) conventional
trailer, multiply 5000 by 0.10 and 0.15 to obtain a
proper tongue load range of 227 to 340 kg (500 to
750 lbs.). For an 5216 kg (11,500 lbs.) fifth wheel
trailer, multiply by 0.15 and 0.25 to obtain a proper
king pin load range of 782 to 1304 kg (1,725 to
2,875 lbs.)
Do not exceed the GVWR or the GAWR
specified on the certification label.
2004 Mustang (mus)
Owners Guide (post-2002-fmt)
USA English (fus)
Driving
119