FORD 2010 F-150 v.1 - Manual (Page 257)

Your vehicle’s load capacity is designated by weight, not by volume, so
you cannot necessarily use all available space when loading a vehicle.
Towing a trailer places an additional load on your vehicle’s engine,
transmission, axle, brakes, tires and suspension. Inspect these
components carefully periodically during, and after any towing operation.
Exceeding the maximum GCWR could result in extensive damage
to your vehicle and personal injury.
WARNING: Do not exceed the GVWR or the GAWR specified on
the certification label.
WARNING: 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 vehicle control, vehicle rollover and personal injury.
Regular Cab 4x2 (126” wheelbase)
Engine Rear axle ratio Maximum
GCWR-lb. (kg)
Maximum
trailer
weight-lb. (kg)
4.6L 2V
3.55 10400 (4717) 5400 (2449)
3.73 10900 (4944) 5900 (2676)
Regular Cab 4x4 (126” wheelbase)
Engine Rear axle ratio Maximum
GCWR-lb. (kg)
Maximum
trailer
weight-lb. (kg)
4.6L 2V 3.73 10900 (4944) 5700 (2585)
4.6L 3V
3.55 12900 (5851) 7700 (3493)
3.73 13300 (6033) 8000 (3629)
5.4L
3.31 13000 (5897) 7700 (3493)
3.55 13900 (6305) 8600 (3901)
3.73 13900 (6305) 8600 (3901)
Tires, Wheels and Loading
257
2010 F-150 (f12)
Owners Guide, 1st Printing
USA (fus)