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Parking
WARNING:When parking your vehicle, do not leave the
transmission in gear; if the key is in the on position and the
vehicle rolls, the engine could start. Failure to follow these instructions
could result in an unattended vehicle moving, possibly causing personal
injury or property damage.
Always use the parking brake. When parking on a grade, block the
wheels and turn the front wheels to one side so that if the vehicle rolls,
the front tires act against the curb to stop the vehicle. The front wheels
are more effective at stopping a rolling vehicle than the rear wheels.
Cold Weather
Note:Idling in cold weather does not heat the engine to its normal
operating temperature. Long periods of idling in cold weather can cause
a build-up of heavy deposits of carbon and rust on valve stems causing
them to stick which, in turn, can cause valvetrain damage.
Note:The use of winter fronts, or other air-restrictive devices mounted
in front of the radiator on vehicles with chassis-mounted charge air
coolers, are not recommended unless extremely cold weather conditions
exist. Airflow restriction can cause high exhaust temperatures, power
loss, excessive fan usage and a reduction in fuel economy. If you must
use a winter front, the device should have a permanent opening of at
least 120 square inches (774 square centimeters) directly in line with the
fan hub.
For best engine operation in temperatures of 32°F (0°C) or lower:
•Make sure the batteries are the correct type and are fully charged.
Check other electrical components to make sure they are in optimum
condition.
•Use a permanent-type engine coolant to protect the engine against
damage from freezing.
•If your vehicle is equipped with a water-fuel separator, drain it daily.
Fill the fuel tank at the end of daily operation to prevent
condensation in the fuel system.
•Use the proper engine oil and maintain it at its proper level.
•At temperatures of –4°F (–20°C) or below, it is recommended that
you use a crankcase-mounted coolant heater to improve cold engine
starting.
•If operating in arctic temperatures of –20°F (–29°C) or lower, consult
your truck dealer for information about special cold weather
equipment and precautions.
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Page 260 of 378

Oil-lubricated Front Wheel Bearings
During normal vehicle duty cycle, the lubricant and air inside the
hub/wheel cavity expands and, if not vented, causes pressure build-up
that could cause accelerated seal wear. There are two venting methods
that can be used to prevent pressure build-up:
•a slit or small hole in the rubber check vent
•the window.
Over a period of time, if not routinely cleaned, a slight film of oil can
collect dirt around the rubber fill plug and face, which could appear to
be a leak. Routine cleaning makes sure that the lubricant level can be
easily observed through the window as intended. In situations where the
window is clean on the outside but discolored on the inside, the
lubricant level may be checked by inserting a finger through the rubber
check vent hole.
The specified lubricant level for a window-type hubcap is from the
minimum line to 5/16 inch (8 millimeters) above the minimum line. If the
lubricant level should suddenly drop dramatically below the minimum
level, see theWorkshop Manualfor diagnostic procedure.
Installation, Tightening and Alignment
Make sure the threads on the studs and nuts are clean to permit correct
torque when installing wheels. The mounting surfaces of rims, wheels,
spacer rings and clamps must be free of dirt, rust, lubricants or damage.
Use a wire brush to clean the mounting contact surfaces. Do not use
lubricant on threads.
Check the rim or wheel for proper alignment after it has been properly
tightened. Rotate the wheel with a piece of chalk attached to a steady,
firm surface, and placed to just barely clear the outside surface of the
tire bead seat; this procedure points out the high spot. A high spot does
not necessarily mean that the lug nuts have been unevenly tightened,
but could be the result of a bent wheel.
Use the following installation procedure:
1. Slide inner rear or front tire and wheel in position over studs and push
it back as far as possible. Use care so that the threads on the studs are
not damaged.
Wheels and Tires259
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TECHNICAL SPECIFICATIONS
Component Lubrication TypeViscosity / Ambient
Temperature / NotesEquivalent Ford
Part Name / Number
Non-driving front axle
Eaton-Spicer axle
(generic) - front axle
wheel bearing oilMultipurpose EP gear
lube of API GL-5
quality meeting
MIL-PRF-2105E
specifications including
synthetic lubricants.
Do not mix
conventional and
synthetic lubricants.SAE 75W:
–40°F to –15°F
(–40°C to –26°C)Motorcraft® SAE
75W-140 Synthetic
Rear Axle Lubricant /
XY–75W140–QL
SAE 75W-80:
–40°F to 80°F
(–40°C to 27°C)
SAE 75W-140:
–40°F and above
(–40°C and above)
SAE 80W-140:
–15°F and above
(–26°C and above)
SAE 85W-140:
10°F and above
(–12°C and above)
SAE 80W-90:
–15°F to 100°F
(–26°C to 38°C)Motorcraft® SAE
80W-90 Premium Rear
Axle Lubricant /
XY–80W90–QL
264Capacities and Specifications
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Component Lubrication TypeViscosity / Ambient
Temperature / NotesEquivalent Ford
Part Name / Number
Spicer axle - front axle
wheel bearing oilMultipurpose EP gear
lube of API GL-5
quality meeting
MIL-PRF-2105E
specifications including
synthetic lubricants.
Do not mix
conventional and
synthetic lubricants.SAE 75W:
–40°F to 32°F
(–40°C to 0°C)Motorcraft® SAE
75W-140 Synthetic
Rear Axle Lubricant /
XY–75W140–QL
SAE 75W-140:
–40°F and above
(–40°C and above)
SAE 80W-140:
–15°F and above
(–26°C and above)
SAE 85W-140:
10°F and above
(–12°C and above)
SAE 140W:
40°F and above
(4°C and above)
SAE 80W:
–15°F to 70°F
(–26°C to 21°C)Motorcraft® SAE
80W-90 Premium Rear
Axle Lubricant /
XY–80W90–QL
SAE 90W:
10°F to 100°F
(–12°C to 38°C)
Capacities and Specifications265
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Component Lubrication TypeViscosity / Ambient
Temperature / NotesEquivalent Ford
Part Name / Number
Windshield Washer
Washer fluid WSB-M8B16-A2 — Motorcraft® Premium
Windshield Washer
Concentrate / ZC-32-A
(U.S.) or CXC-37-(A,
B, D, and F) (Canada)
Transmission
Six-speed automatic
(6R140)— — Motorcraft®
MERCON® LV ATF /
XT-10–QLV
Eaton-Fuller Petroleum oil: Engine
oil API-SL or API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 40W:
Below 10°F (–12°C)—
SAE 50W:
Above 10°F (–12°C)—
Mineral gear oil:
API-GL-1 (rust and
oxidation inhibited)SAE 75W:
Below 10°F (–12°C)—
SAE 80W–90:
Above 10°F (–12°C)—
Synthetic oil: Eaton®,
Roadranger® synthetic
CD-50 transmission
fluidCD SAE 50W:
All temperatures—
268Capacities and Specifications
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Component Lubrication TypeViscosity / Ambient
Temperature / NotesEquivalent Ford
Part Name / Number
Spicer
(non-synchronized)
(Lubricants are listed
in order of
preference.)Petroleum oil: Engine
oil API-SL or API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 40W:
Below 0°F (–18°C)—
SAE 50W:
Above 0°F (–18°C)—
Mineral gear oil:
API-GL-1 (rust and
oxidation inhibited)
(EP gear oils are not
acceptable.)SAE 80W:
Below 0°F (–18°C)—
SAE 90W:
Above 0°F (–18°C)—
Synthetic oil: Synthetic
engine oil meeting
MIL-L-2104E or
MIL-L-46152E, API-SL
or API-CFCD SAE 50W:
All temperatures—
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Component Lubrication TypeViscosity / Ambient
Temperature / NotesEquivalent Ford
Part Name / Number
Spicer (synchronized)
(Lubricants are listed
in order of
preference.)Petroleum oil: Engine
oil API-SL or API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 40W:
Below 10°F (–12°C)—
SAE 50W:
Above 10°F (–12°C)—
Mineral gear oil:
API-GL-1 (rust and
oxidation inhibited)SAE 80W:
Below 10°F (–12°C)—
SAE 90W:
Above 10°F (–12°C)—
Synthetic oil: Synthetic
engine oil meeting
MIL-L-2104E or
MIL-L-46152E, API-SL
or API-CFSAE 50W:
All temperatures—
270Capacities and Specifications
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Component Lubrication TypeViscosity / Ambient
Temperature / NotesEquivalent Ford
Part Name / Number
Meritor Petroleum oil: Heavy
Duty Engine Oil
MIL-L-2104E or API-SL
or API-CF (previous
API designations
acceptable)SAE 30W:
Below 10°F (–12°C)Motorcraft® SAE 30
Super Duty Motor Oil /
XO-30-QSD
SAE 40W or SAE 50W:
Above 10°F (–12°C)—
Mineral gear oil with
rust and oxidation
inhibitor API-GL-1.Do
not use multi-weight
and GL-5 EP gear
oils; they may cause
transmission failure
or damage.SAE 80W:
Below 10°F (–12°C)—
SAE 90W:
Above 10°F (–12°C)—
Synthetic oil:
MIL-L-2104E or
MIL-L-46152D.Do not
use multi-weight and
GL-5 EP gear oils;
they may cause
transmission failure
or damage.SAE 50W:
All temperatures—
Allison See transmission operator’s manual
Capacities and Specifications271
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