cause permanent damage to unprotected eyes. Do
not point the air stream in the direction of other
persons.
5.2 Wash the strainer in solvent, and blow it
dry with compressed air to remove oil and
metal particles.
5.3 Install and tighten the magnetic strainer
40 to 60 lbf·ft (54 to 81 N·m).
6. Clean the fill plugs and drain plugs. To help
clean magnetic plugs, a piece of key stock or
any other convenient steel slug may be used to
short the two magnetic poles and divert the mag-
netic field.
IMPORTANT: Magnets will rapidly lose effective-
ness as collected material bridges the gap be-
tween the two poles. Clean or change the plugs
before this occurs. It may be necessary to clean
or change the plugs one or more times between
lubrication change intervals.
7. After cleaning, install and tighten the drain
plug(s) 40 to 60 lbf·ft (54 to 81 N·m).
8. Fill the axle with recommended lubricant. See
Table 1 for recommended drive axle lubricants,
and Table 2 for drive axle lubricant capacities.
Dana Spicer Drive Axle Recommended Lubricant
Lubricant Type Condition
Lubricant SAE
Viscosity
Grade
Dana Spicer
Roadranger
®
Synthetic Drive Axle
Lubricants, or
Equivalent with
Military Specification
MIL–L–2105D
Over-the-Road
Service
75W–90
Off-Highway
Equipment, or
Under Extra
Heavy Loads
80W–140
Table 1, Dana Spicer Drive Axle Recommended
Lubricant
NOTE: Some Dana Spicer axles have a
small tapped and plugged hole near and
below the housing oil fill hole. This smaller
hole is for a lubricant temperature indicator
only, and should not be used as a fill or level
hole.
8.1 Using recommended lubricant, fill the axle
through the oil fill hole or standpipe open-
ing. Lubricant should be level with the
bottom of the oil fill hole (see Fig. 3)or
top of the standpipe opening.
Dana Spicer Drive Axle Lubricant Capacities
Axle Type Axle Model
Capacity
*
:
pints (liters)
Single-Drive Axle Installation
Single
Reduction
23080S, 23080D 40 (18.9)
23105S, 23105D 48 (22.7)
Dual-Drive Axle Installation
Single
Reduction
DD404, DD404–P 31 (14.7)
†
DS404, DS404–P 39 (18.5)
†
DS461–P 43 (20.3)
†
Dual Range
(2-Speed)
DT402, 402–P 34 (16.1)
†
DT451–P 39 (18.5)
†
DT461–P 43 (20.3)
†
Double
Reduction
DP451–P 34 (16.1)
†
DP461–P 43 (20.3)
†
*
Quantities listed are approximate. Fill axle until lubricant is level with bot-
tom of fill hole with vehicle on level ground.
†
Add 2 pints (1 L) of additional lubricant to the power divider.
Table 2, Dana Spicer Drive Axle Lubricant Capacities
8.2 Install and tighten the fill plug 40 to 60
lbf·ft (54 to 81 N·m).
8.3 For forward drive axles, remove the
power divider fill plug, located slightly off-
set to the right in the top portion of the
forward differential carrier. See Fig. 4.
f350061a
A
B
06/07/94
A. Correct (lube level at bottom of fill hole)
B. Incorrect (lube level below fill hole)
Fig. 3, Axle Lubricant Level Inspection
Rear Axle35
Century Class Trucks Maintenance Manual, April 200535/2
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