Chevrolet 10 1971 Series Chassis Service Manual page 136

REAR SUSPENSION AND DRIVE LINE 4-16
Fig. 30— A xle Vent Installation
2. Connect and secure
brackets.
3. Connect hydraulic brake hose to connector on axle
housing, and bleed hydraulic system as specified in
Section 5. (If vehicle is equipped with air brakes,
connect air line at brake chambers--test connections
to make sure that there is no leakage.)
4. Connect hand brake cables and adjust parking brakes
as specified in Section 5.
5. Reassemble the rear universal joint, making sure
that "U " bolts are drawn up tight and locked prop­
erly. Caution should be taken not to overtighten
bolt nuts and cause bearing cups to become distorted.
6. Install rear wheels, remove stand jacks, and lower
vehicle.
7. Test operation of brakes and rear axle.
AXLE VENT
Replacement
Service replacement axle housing assemblies are not
equipped with an axle vent; therefore, always make sure
that a new vent assembly is installed when replacing the
housing. If axle vent requires replacement, pry old vent
from housing being sure that entire vent is removed.
Prick punch around carrier hole to insure fit of replace­
ment vent. Tap new vent into housing using a soft-faced
hammer. Vent should be positioned in housing so that
flat surface is toward centerline of differential carrier
(fig. 30).
AXLE SHAFT (EXCEPT 11,000 LB. AXLE)
Removal and Installation
1. Remove bolts and lock washers that attach the axle
shaft flange to the wheel hub.
2. Install two 1/2"-13 bolts in the threaded holes pro­
vided in the axle shaft flange. By turning these bolts
alternately the axle shaft may be easily started and
then removed from the housing (fig. 31).
shock absorbers to axle
Fig. 31.— Removing Axle Shaft (5200 and 7200 lb. Axle)
Thoroughly clean both the axle shaft flange and the
3.
end of the wheel hub.
Any lubricant on these surfaces tends
NOTE:
to loosen axle shaft flange bolts.
Place a new gasket over the axle shaft and position
4.
the axle shaft in the housing so that the shaft splines
enter the differential side gear. Position gasket so
that holes are in alignment and install flange-to-hub
attaching bolts--torque bolts to specifications.
To prevent
NOTE:
through flange holes, apply a non-hardening
sealer (such as Permatex Type A or equivalent)
to bolt threads. Use care in the amount of sealer
applied, as in too heavy an application, the
sealer may be forced out as the bolt is installed
and may destroy sealing effect of the flange-to-
hub gasket.
AXLE SHAFT 11,000 LB. AXLES
Removal and Installation
1. Remove hub cap, and install Tool J-8117 in tapped
hole on shaft flange.
2. Install slide hammer (Tool J-2619) and remove axle
shaft (fig. 32).
3. Thoroughly remove old gasket material from hub and
hub cap. Clean shaft flange and mating surfaces in
the wheel hub.
4. Install axle shaft so that the flange splines index into
hub splines. Tap shaft into position, using J-8117
and J-2619.
5. Install new hub cap-to-hub gasket, position hub cap to
hub and install attaching bolts--torque bolts to
specifications.
Fig. 32— Removing A xle Shaft (11,000 lb. A xle)
lubricant from leaking
10-30 CHEVROLET TRUCK SERVICE MANUAL