Chevrolet 1980 Light Duty Truck Service Manual page 342

4B-18 REAR AXLE
Fig. 4B-30~Rem oving Flange-to-Hub Bolts
Installation
1. Place axle assembly under vehicle, raise into
position, install spring "U" bolts, anchor plates and nuts,
and tighten securely.
2. Connect and secure shock absorbers to axle
brackets.
3. Connect brake hose at connector on rear axle
housing.
4. Connect parking brake cable at lever and flange
plate. Install hub and drum assembly. Bleed brake hydraulic
system and adjust parking brake.
Before reinstalling wheel hub and drum assembly
replace hub oil seal.
5. Reassemble the rear universal joint, making sure
that "U" bolts are drawn up tight and locked properly.
Caution should be taken not to overtighten "U" 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 SHAFT
Replacement
1. Remove bolts that attach the axle shaft flange to the
wheel hub. See figure 4B-30.
2. Rap on flange with a soft-faced hammer to loosen
shaft. Grip the rib on end of flange with a pair of locking
pliers and twist to start shaft removal. Remove shaft from
axle tube.
3. Thoroughly clean both the axle shaft flange and the
end of the wheel hub. Any lubricant on these surfaces tends
to loosen axle shaft flange bolts.
4. Place a new gasket over the axle shaft and position
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.
1. Axle Shaft
2. Shaft-to-Hub Bolt
3. Retainer
4. Key
5. Adjusting Nut
6
. Hub Outer Bearing
7. Snap Ring_______
Fig. 4B-31--Hub and Drum A s s e m b ly -1 0 -1 /2 " Axles
HUB AND DRU M ASSEM BLY-FIG . 4B-31
Removal
1. Remove axle shaft as outlined earlier.
2. Disengage tang of retainer from slot or flat of
locknut, then remove locknut from housing tube, using J-
2222, as shown in figure 4B-32.
3. Disengage tang of retainer from slot or flat of
adjusting nut and remove retainer from housing tube.
Fig. 4 B - 3 2 - R e m o v in g Lock N u t-Ty p ic al
Hub Inner Bearing
8
.
9. Oil Seal
Wheel Bolt
10
.
Hub Assembly
11.
Drum Assembly
12
.
13 R.T.V.
.
LIG H T T R U C K S E R V IC E MANUAL