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5. The lubricant level should be up to the bottom of the filler plug
opening.
6. If necessary, add enough lubricant through the filler plug opening so
that the lubricant level is at the bottom of the opening.
7. Clean and install the filler plug securely.
Draining and refilling the rear axle lubricant
1. Drain the rear axle while the lubricant is warm.
2. Park the vehicle on level ground.
3. Set the parking brake and shift into N (Neutral) (automatic
transmission) or 1 (First) (manual transmission) and turn the engine off.
4. Clean any dirt from around the rear axle filler and drain plugs.
5. Remove the filler and drain plugs and drain the lubricant into a
suitable container. Dispose of all used automotive fluids in a responsible
manner following your local authorized standards.
6. Clean and install the drain plug securely.
7. Add enough lubricant through the filler plug opening so that the
lubricant level is up to the bottom of the opening.
8. Clean and install the filler plug securely.
WHEELS
General
Wheel bearings should be inspected, lubricated and adjusted at regular
intervals. This is especially important if operating in deep sand, mud, or
water. Refer toLubricant specificationsin this chapter.
When installing wheel balance weights, they must be mounted on the
dome-side of the wheel only. Failure to do so may result in loss of wheel
weight and/or damage to brakes or wheels.
Important:Remember to replace the wheel air valves when the road
tires are replaced at the end of their useful life.
Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Driveshaft
U-joint GC/LB NLGI #2
lithium
complex-based
moly grease or
multi-purpose
lithium complex
grease— Motorcraft
Premium Long
Life Grease /
XG-1-C
Clutch
Release bearing /
shafts / forkGC/LB NLGI #2
lithium
complex-based
moly grease or
multi-purpose
lithium complex
grease— Motorcraft
Premium Long
Life Grease /
XG-1-C
Reservoir DOT 3,
ESA-M6C25–A or
WSS-M6C62–A— Motorcraft High
Performance
DOT 3 Motor
Vehicle Brake
Fluid, PM-1 or
PM-1–C
Cooling system
Engine coolant Refer to engine operator’s manual
Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Windshield washer
Washer fluid WSB-M8B16-A2 — Motorcraft
Premium
Windshield
Washer
Concentrate /
ZC-32-A
Transmission
Eaton-Fuller Petroleum oil:
Engine oil API-SL
or API-CF
(MIL-L-2104E or
MIL-L-46152E)SAE 50:
Above 10°F
(–12°C)—
SAE 40:
Below 10°F
(–12°C)—
Mineral gear oil:
API-GL-1 (rust
and oxidation
inhibited)SAE 80W–90:
Above 10°F
(–12°C)—
SAE 75W:
Below 10°F
(–12°C)—
Synthetic oil:
Eaton,
Roadranger
synthetic CD-50
transmission fluidCD SAE 50:
All temperatures—
Maintenance and Specifications
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ComponentLubrication
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 50:
Above 0°F
(–18°C)—
SAE 40:
Below 0°F
(–18°C)—
Mineral gear oil:
API-GL-1 (rust
and oxidation
inhibited) (EP
gear oils are not
acceptable)SAE 90:
Above 0°F
(–18°C)—
SAE 80:
Below 0°F
(–18°C)—
Synthetic oil:
Synthetic Engine
Oil meeting
MIL-L-2104E or
MIL-L-46152E,
API-SL or API-CFCD SAE 50:
All temperatures—
Maintenance and Specifications
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ComponentLubrication
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 50:
Above 10°F
(–12°C)—
SAE 40:
Below 10°F
(–12°C)—
Mineral gear oil:
API-GL-1 (rust
and oxidation
inhibited)SAE 90:
Above 10°F
(–12°C)—
SAE 80W:
Below 10°F
(–12°C)—
Synthetic oil:
Synthetic Engine
Oil meeting
MIL-L-2104E or
MIL-L-46152E,
API-SL or API-CFSAE 50:
All temperatures—
Maintenance and Specifications
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ComponentLubrication
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 50:
Above 10°F
(–12°C)—
SAE 40:
Above 10°F
(–12°C)—
SAE 30:
Below 10°F
(–12°C)Motorcraft SAE
30 Super Duty
Motor Oil /
XO-30-QSD
Mineral gear oil
with rust and
oxidation
inhibitor
API-GL-1Do not
use
multi-weight
and GL-5 EP
gear oils; they
may cause
transmission
failure or
damage.SAE 90:
Above 10°F
(–12°C)—
SAE 80:
Below 10°F
(–12°C)—
Synthetic oil:
MIL-L-2104E or
MIL-L-46152DDo
not use
multi-weight
and GL-5 EP
gear oils; they
may cause
transmission
failure or
damage.SAE 50:
All temperatures—
Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Cab components
Hydraulic lift pump
fluidDexron III — Motorcraft
MERCON
Multi-Purpose
(ATF)
Transmission
Fluid /
XT-2-QDX
Cab latch and lock
leversMobile SHC 32
Low Temperature
Lubricant (or
equivalent)——
Cab latch pivots;
Door check,
hinges, latches and
strikers; Seat
adjuster slidesGC/LB NLGI #2
lithium
complex-based
moly grease (or
equivalent) or
multi-purpose
lithium complex
grease— Motorcraft
Premium Long
Life Grease /
XG-1-C
Cab latch pivot
pinsLight engine oil — Motorcraft SAE
5W-30 Super
Premium Motor
Oil /
XO-5W30-QSP
Door lock cylinders Lock oil — Motorcraft
Penetrating and
Lock Lubricant /
XL-1
Maintenance and Specifications
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ComponentLubrication
typeViscosity /
Ambient
temperature /
NotesEquivalent
Ford part
name / number
Door window
regulatorsNGLI #2
multipurpose
lithium complex
grease— Motorcraft
Multi-Purpose
Grease Spray /
XL-5 or
Motorcraft
Multi-Purpose
Grease / XG-4
Weatherstripping Silicone lubricant — Motorcraft
Silicone Spray /
XL-6
Engine oil
Refer to engine operator manual
Brake fluid
Master cylinder DOT 3,
WSS-M6C62-A or
WSS-M6C65-A1— High
Performance
DOT 3 Motor
Vehicle Brake
Fluid, PM-1-C
(U.S.) or
CPM-1-C
(Canada)
REFILL CAPACITIES
Rear axle
Axle codeWeight capacity
- lb. (kg)DescriptionFluid capacity -
pints (liters)1,2
S135–S 13500 (6123) Single rear axle,
single reduction24.5 (11.6)
4S150–S 15500 (7031) Single rear axle,
single reduction24.5 (11.6)
17060S 17500 (7938) Single rear axle,
single reduction28.0 (13.2)
Maintenance and Specifications
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