Ford 2015 F-150 Owner's Manual page 254

Note: For high altitude operation,
reduce the gross combined weight
by 2% per 1,000 ft (305 m) starting
at the 1,000 ft (305 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.
Cab – wheel-
base (inches)
Regular cab –
122
Regular cab –
141
F-150 (TFC) Canada/United States of America, enUSA, Fourth Printing
Towing
Driveline – 4x2
Engine
3.5L TiVCT
2.7L GTDI
5.0L TiVCT
3.5L TiVCT
251
Your vehicle may tow a trailer
provided the maximum trailer
weight is less than or equal to the
maximum trailer weight listed for
your vehicle configuration on the
following charts.
1
Axle ratio
3.55
3.73
3.31
3.73
3.31
3.55
3.55
Maximum
2, 3
GCWR
9500 lb (4309
4
kg)
12000 lb (5443
kg)
12200 lb (5533
kg)
13100 lb (5942
kg)
13000 lb (5897
kg)
13800 lb (6260
kg)
9600 lb (4354
4
kg)