FORD 2010 E-450 v.2 - Manual (Page 185)

GCWR (Gross Combined Weight Rating)/Trailer Weights
Engine
Rear
axle
ratio
Maximum
GCWR - lb
(kg)
Maximum
Loaded Trailer
Weight - lb (kg)
Maximum
frontal area of
trailer - ft 2 (m 2 )
E-450 Stripped Chassis (176” wheelbase, dual rear wheel)
(14500 GVWR)
6.8L 4.56
20000
(9072)
10000 (4536) 60 (5.52)
Maximum trailer weight for all cutaway (E-350 and E-450) vehicles
must be calculated by subtracting the weight of the vehicle (including
incomplete vehicle weight and payload which includes second unit
body weight, cargo and passengers) from the GCW. Otherwise,
maximum trailer weight is 10000 lb (4536 kg).
For high altitude operation reduce GCWR by 2% per 1000 ft. (300 m)
elevation.
To determine the maximum trailer weight designed for your particular
vehicle as equipped, follow the section Vehicle loading - with and
without a trailer earlier in this chapter.
Preparing to tow
Use the proper equipment for towing a trailer and make sure it is
properly attached to your vehicle. Contact your authorized dealer or a
reliable trailer dealer as soon as possible if you require assistance.
Hitches
Do not use or install hitches that clamp onto the bumper or to the axle.
Underbody hitches are acceptable if installed properly.
Safety chains
Always connect the trailer’s safety chains to the frame or hook retainers
of the vehicle hitch. To connect the trailer’s safety chains, cross the
chains under the trailer tongue and allow slack for turning corners.
If you use a rental trailer, follow the instructions that the rental agency
gives to you.
Do not attach safety chains to the bumper.
Trailer brakes
Electric brakes and manual, automatic or surge-type trailer brakes are
safe if installed properly and adjusted to the manufacturer’s
specifications. The trailer brakes must meet local and Federal
regulations.
Tires, Wheels and Loading
185
2010 Econoline (eco)
Owners Guide, 2nd Printing
USA (fus)