Ford F-150 Owner's Manual page 190

Tires, Wheels and Loading
SuperCab 4x2 (144.5" wheelbase)
Engine Rear axle ratio
4.6L (with 17"
tires)
4.6L (with 18"
tires)
4.6L (with 17"
tires)
4.6L (with 18"
tires)
5.4L (with 17"
tires)
5.4L (with 18"
or 20" tires)
5.4L (with 17"
tires)
5.4L (with 18"or
20" tires)
Super Cab 4x2 (144.5" wheelbase) Harley-Davidson Version
Engine Rear axle ratio
5.4L
SuperCab 4x2 (163" wheelbase)
Engine Rear axle ratio
5.4L Heavy Duty
190
2006 F-150 (f12)
Owners Guide (post-2002-fmt)
USA (fus)
Maximum
GCWR-lb. (kg)
3.55 11700 (5307)
3.55 11200 (5081)
3.73 12200 (5534)
3.73 11700 (5307)
3.55 14000 (6350)
3.55 13500 (6123)
3.73 15000 (6804)
3.73 14500 (6577)
Maximum
GCWR-lb. (kg)
3.73 11500 (5216)
Maximum
GCWR-kg (lb.)
4.10 15300 (6940)
Maximum
trailer
weight-lb. (kg)
6400 (2903)
5900 (2677)
6900 (3130)
6400 (2903)
8600 (3901)
8100 (3674)
9500 (4309)
9000 (4082)
Maximum
trailer
weight-lb. (kg)
5800 (2630)
Maximum
trailer
weight-kg (lb.)
9500 (4309)