FORD 2002 F-550 v.1 - Manual (Page 197)

Exceeding these limits may allow water to enter critical vehicle
components, adversely affecting driveability, emissions and reliability.
Replace front and rear axle lubricants any time the axles have been
submerged in water. Axle lubricant quantities are not to be checked
unless a leak is suspected.
ALL REAR WHEEL DRIVE (RWD) VEHICLES
This applies to all cars and 4x2 trucks/sport utilities with rear wheel
drive capability.
An example of recreational towing is towing your vehicle behind a
motorhome. The following recreational towing guidelines are designed to
ensure that your transmission is not damaged.
• Place the transmission in N (Neutral).
• Maximum speed is 56 km/h (35 mph).
• Maximum distance is 80 km (50 miles).
If a distance of 80 km (50 miles) or a speed of 56 km/h (35 mph) must
be exceeded, you must disconnect the driveshaft. Ford recommends the
driveshaft be removed/installed only by a qualified technician. See your
local dealer for driveshaft removal/installation.
Improper removal/installation of the driveshaft can cause
transmission fluid loss, damage to the driveshaft and internal
transmission components.
RWD VEHICLES WITH 4X4 ELECTRONIC SHIFT TRANSFER CASE
OR ALL WHEEL DRIVE (AWD) VEHICLES WITH AUTOMATIC
TRANSMISSIONS
Regarding recreational towing or having your vehicle towed, 4x4 vehicles
with electronic shift on the fly and AWD vehicles cannot be towed with
any wheels on the ground (with the exception of moving it as a disabled
vehicle off the road out of traffic).
SNOWPLOWING
Do not use your vehicle to plow until it has been driven at least 800 km
(500 miles).
For low speed snow removal, Ford offers a Snowplow Package Option on
select 4x4 vehicles. To assist Ford dealers and equipment installers
further prepare the vehicle for snowplowing, Ford includes instructions
in the Ford Truck Body Builders Layout Book and Ford Truck Source
Driving
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