Chevrolet 70 1969 Series, Shop Manual

Page: 146 / 913

REAR SUSPENSION 4A-7
10. Check lubricant level and fill with type and
grade of lubricant in manner instructed in LU BR I­
C A T IO N (SEC. 0). Some types of axles require
additional lubricant at pinion cage and inter-axle
differential shift housing, when filled initially or
after overhaul.
11. Remove blocks and lower vehicle to the
ground. Retighten spring U-bolts as instructed in
" R E A R SPRINGS" (SEC. 4B).
12. After all installation procedures have been
completed, check all air lines for leaks, also test
brakes for proper application.
DIFFERENTIAL CARRIER
REPLACEMENT
In some instances it may be desirable to re­
move the differential carrier assembly from the
axle housing, while the housing remains installed
under the vehicle.
To assist in handling the differential carrier
assembly, a roller jack should be available; also,
a pan for draining lubricant.
Inspect axle housing for lubricant leaks before
cleaning, then steam clean thoroughly to remove
all dirt or other foreign matter.
R E M O V A L
All Axles
1. Remove plug at bottom of housing to drain
lubricant.
2. Remove axle shafts as directed under head­
ing "Axle Shaft Replacement" in this section.
3. On 2-speed axles disconnect wiring from
shift unit, also remove air line from inter-axle
differential lock shift cylinder on forward axle of
tandem units.
4. Disconnect propeller shaft from yoke as
directed in "P R O P E L L E R S H A F T S "(S E C . 4D).
Additional steps are required on different
axles as indicated under applicable headings fol­
lowing:
Single Axle or Rearward Tandem Unit
1. Remove cap screws or stud nuts, and lock
washers, except two near top. Loosen two at top
and leave installed to prevent carrier falling.
2. Support carrier on roller jack, remove top
stud nuts or cap screws, then work carrier free
of housing. A small pinch bar may be used to keep
carrier straight in housing bore, while carrier is
withdrawn. End of bar must be rounded to prevent
damage to carrier flange.
Eaton Tandem Forward Unit
1. Remove yoke nut (fig. 7) and washer, then
remove yoke using suitable puller (fig. 8). Remove
bearing retaining washer.
Figure 7— Propeller Shaft Yoke Holding Bar
2. Remove stud nuts, capscrew, and lock wash­
ers attaching cover to rear of axle housing. Remove
cover assembly with oil seal and bearing (fig. 9).
3. At front of housing, remove differential
carrier to axle housing cap screw, stud nuts, and
lock washers, except two near top. Loosen two at
top and leave installed to prevent carrier falling.
o
\
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A
T -2 3 6 2
Figure 8— Propeller Shaft Yoke Puller (Typical)
CHEVROLET SERIES 70-80 H EAVY DUTY TRUCK SH O P M A N U A L