Ford Super Duty (2018 year). Manual — part 70

Note: In some cases, if vehicle speed is too
high, the system may activate multiple
times, gradually reducing vehicle speed.

This feature applies your vehicle brakes at
individual wheels and, if necessary, reduces
engine power. If the trailer begins to sway,
the stability control light flashes and the
message TRAILER SWAY REDUCE
SPEED appears in the information display.
The first thing to do is slow your vehicle
down, then pull safely to the side of the
road and check for proper tongue load and
trailer load distribution. See Load
Carrying (page 266).

RECOMMENDED TOWING
WEIGHTS

WARNING

You must use the heavy-duty
drawbar pin supplied with

your vehicle when using the
heavy-duty hitch. Failure to follow
this instruction could result in the
loss of control of your vehicle,
personal injury or death.

Note: Vehicles with a heavy-duty
hitch must use the drawbar pin
stamped 21,000 LBS. You can
obtain a replacement drawbar pin
at your authorized dealer.

Note: Make sure to take into
consideration trailer frontal area.
Do not exceed 60 ft

2

(5.6 m

2

) trailer

frontal area for conventional
trailers. Do not exceed 75 ft

2

(6.9

m

2

) trailer frontal area for fifth

wheel and gooseneck trailers.

Note: Exceeding this limitation
may significantly reduce the
performance of your towing
vehicle. Selecting a trailer with a
low aerodynamic drag and rounded
front design helps optimize
performance and fuel economy.

Note: For high altitude operation,
reduce the gross combined weight
by 2% per 1,000 ft (300 m)
starting at the 1,000 ft (300 m)
elevation point.

Note: Certain states require
electric trailer brakes for trailers
over a specified weight. Be sure to
check state regulations for this
specified weight. The maximum
trailer weights listed may be limited
to this specified weight, as your
vehicle's electrical system may not
include the wiring connector
needed to use electric trailer
brakes.

Your vehicle may tow a trailer
provided the maximum trailer
weight is less than or equal to the
maximum trailer weight
calculated using the formula
following the chart.

Pickup and box delete

Maximum

GCWR

Rear axle ratio

Engine

Vehicle

19,500 lb

(8,845 kg)

3.73

6.2L gas

F-250

22,000 lb

(9,979 kg)

4.30

23,500 lb

(10,660 kg)

3.31, 3.55

6.7L diesel

25,700 lb

(11,657 kg)

3.31, 3.55

6.7L diesel

1

19,500 lb

(8,845 kg)

3.73

6.2L gas

F-350 single

rear wheel

23,000 lb

(10,433 kg)

4.30

28,700 lb

(13,018 kg)

3.31, 3.55

6.7L diesel

20,000 lb

(9,072 kg)

3.73

6.2L gas

F-350 dual rear

wheel

23,500 lb

(10,660 kg)

4.30

36,000 lb

(16,329 kg)

3.55

6.7L diesel

40,000 lb

(18,144 kg)

4.10

42,800 lb

(19,414 kg)

4.30

6.7L diesel

F-450

1

Trailer Tow Package.

Chassis cab

Maximum

GCWR

Rear axle

ratio

Engine

Vehicle

19,500 lb

(8,845 kg)

3.73

6.2L gas

F-350 single

rear wheel

23,000 lb

(10,433 kg)

4.30

26,500 lb

(12,020 kg)

3.73

6.7L diesel

20,000 lb

(9,072 kg)

3.73

6.2L gas

F-350 dual rear

wheel

23,500 lb

(10,660 kg)

4.30

31,000 lb

(14,062 kg)

3.73

6.7L diesel

32,000 lb

(14,515 kg)

4.10

28,000 lb

(12,701 kg)

4.88

6.8L gas

F-450 dual rear

wheel

32,000 lb

(14,515 kg)

4.10

6.7L diesel

34,500 lb

(15,649 kg)

1

4.30

28,000 lb

(12,701 kg)

4.88

6.8L gas

F-550 dual rear

wheel (17500/

18000 lb

GVWR)

32,000 lb

(14,515 kg)

4.10

6.7L diesel

35,000 lb

(15,876 kg)

4.30

Chassis cab

Maximum

GCWR

Rear axle

ratio

Engine

Vehicle

28,000 lb

(12,701 kg)

4.88

6.8L gas

F-550 dual rear

wheel (19000/

19500 lb

GVWR)

32,000 lb

(14,515 kg)

4.88

6.7L diesel

40,000 lb

(18,144 kg)

1

4.88

1

Requires optional GCWR Package.

Calculating the Maximum
Loaded Trailer Weight for Your
Vehicle

1. Start with the gross combined

weight rating for your vehicle
model and axle ratio. See the
previous chart.

2. Subtract all of the following

that apply to your vehicle:

•

Vehicle curb weight.

•

Hitch hardware weight, such as
a draw bar, ball, locks or weight
distributing hardware.

•

Driver weight.

•

Passenger(s) weight.

•

Payload, cargo and luggage
weight.

•

Aftermarket equipment weight.

This equals the maximum loaded
trailer weight for this combination.

Note: The trailer tongue load is
considered part of the payload for
your vehicle. Reduce the total
payload by the final trailer tongue
weight.

Note: Consult an authorized dealer
to determine the maximum trailer
weight allowed for your vehicle if
you are not sure.

For additional information on
trailer weights, reference the RV

RV & Trailer Towing Guide Online

http://www.fleet.ford.com/towing-guides/

Website