Chevrolet 10 series 1973, Руководство по капитальному ремонту

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4 - 6 4 REAR AXLE D IF FERENTIA L CARRIER
CASE AND DRIVE P IN IO N
Removal
1. Drain lubricant from differential, remove axle shaft
as outlined in Truck Service Manual. See "Axle
Shaft Removal".
2. Remove two trunnion bearing "U" bolts from the
rear yoke and split the rear universal joint.
NOTE: The bearings can be left on the
trunnion and held in place with tape.
3. Swing propeller shaft to one side and tie to the
frame side rail.
4. Remove bolts and lock washers which retain the
carrier assembly to the axle housing. Support the
differential housing with a floor jack and roll it
from under truck.
Disassembly
1. Mount carrier assembly in a bench vise or holding
fixture.
2. Loosen ring gear thrust pad locknut and remove
thrust pad.
3. Remove differential adjusting nut locks and bearing
cap bolts and lock washers.
4. Mark bearing caps and carrier for reassembly in
same position. Remove bearing caps and adjusting
nuts by tapping on bosses of caps with a soft faced
hammer until caps are free from dowels.
CAUTION:
Do not attempt to pry cap off as
this may damage machined face of cap.
5. Remove differential and ring gear assembly from
the carrier.
CAUTION:
Exercise care that differential
bearing outer races are not dropped while
removing assembly from carrier.
6. Remove the bolts which attach the pinion bearing
retainer to the carrier.
7. Remove the pinion and bearing assembly from the
carrier.
NOTE: It may be necessary to drive this unit
from carrier. Use brass drift against pilot end
of pinion.
Repairs
Pinion Disassembly
1. Clamp pinion drive flange in bench vise.
2. Remove cotter pin, nut and washer from end of
pinion.
3. Remove drive flange and bearing retainer assembly
from pinion.
4. Drive oil seal from retainer. Discard seal as new
parts should be used at assembly.
5. Remove pinion rear bearing snap ring and press
bearing from pinion, using Tool J-1453, as shown
in figure 2G.
6. Position drive pinion in an arbor press so that the
bearing is supported by two pieces of flat steel stock
as shown in Figure 3G. Place flat stock parallel to
each other and against pinion so as to pick up a
large area of bearing outer race. Press pinion from
bearing making sure pinion is supported to prevent
damage when removed from bearing.
Pinion Inspection
1. Wash all parts in cleaning solvent.
2. Inspect pinion for scored, cracked, chipped or worn
teeth.
3. Inspect splines on pinion shaft for excessive wear.
4. Inspect pinion bearing assemblies for roughness,
defects or excessive wear.
Fig. 2G— Pinion Rear B earing Removal
Fig. 3G—Drive Pinion F ront B earing Removal
OVERHAUL MANUAL