Maintenance Manual
Detroit
™
New Final Drive
1. Park the vehicle on a level surface, shut down
the engine, and set the parking brake. Chock the
tires.
2. Clean the fill plug and the area around it. In the
carrier housing, remove the plug from the oil fill
hole. See
Fig. 3 for the forward axle, and Fig. 4
for the rear axle .
CAUTION
Be careful when draining the axle oil. It may be
very hot, and could cause personal injury if it con-
tacts the skin.
3. Place a drain pan under the rear axle drain plug.
Drain the oil when it is warm. At this tempera-
ture, the oil will run more freely and ensure that
the axle is flushed.
4. Clean the fill and drain plugs. Change them if
necessary.
4.1 For magnetic plugs, use a piece of key
stock or any other convenient steel slug
to short the two magnetic poles and divert
the magnetic field.
4.2 Clean away the collected material depos-
ited on each pole. Magnets will rapidly
lose their effectiveness as collected mate-
rial bridges the gap between the two
poles.
4.3 After the first oil is changed, inspect the
drain plug each time for large quantities
of metal particles.
5. Fill the axle with the recommended lubricant.
See
Table 3 for recommended drive axle lubri-
cants and
Table 4 for lubricant capacities.
5.1 Fill the axle through the oil fill hole. Lubri-
cant should be level with the bottom of
the oil fill hole.
5.2 Install and tighten the fill plug 30 lbf·ft (41
N·m).
Detroit Drive Axle Lubricant, New Final Drive
*
Lubricant Type
Ambient
Temperature
Must meet Detroit
Fluids Specification
(DFS) 93K219.03
Synthetic
–40°F (–40°C) and
up
†
*
Detroit rear axles do not require the use of friction modifiers.
†
There is no upper limit on the ambient temperature, but axle sump tem-
perature must never exceed 250°F (121°C).
Table 3, Detroit Drive Axle Lubricants, New Final
Drive
f35060411/07/2016
Fig. 3, Detroit
™
New Final Drive Forward Axle, Oil Fill
Location
f35060511/07/2016
Fig. 4, Detroit
™
New Final Drive Rear Axle, Oil Fill
Location
Rear Axle 35
New Cascadia Maintenance Manual, February 2019 35/3