REAR AXLE 4-27
seal contact surface and restore sm ooth finish, a new
part m ust be installed.
OIL SEAL REPLACEMENT
Pinion oil seal is installed in a pressed m etal retainer
and is serviced as an assembly, therefore no replace
m ent inform ation is necessary.
REASSEM BLY O F SU B A SSEM B LIES
Before axle is assembled, m ake sure that all parts have
been thoroughly cleaned, then apply a thin coating of
differential lubricant to all thrust and bearing surfaces
to prevent scoring of parts when vehicle is first placed
in service.
Use of new lock washers and gaskets is recom m ended
throughout, during assem bly of axle. A djustm ents
m ust be carefully m ade to insure efficient and contin
uous operation. Refer to “ Specifications” at end of
this publication for torque specifications and new part
limits.
PINION AND CAG E ASSEMBLY
Key num bers in text refer to Figure 14.
W henever inspection shows th at pinion (2) m ust be re
placed, it is also necessary to install new bevel gear,
as these parts are serviced in m atched sets.
1. Press straight roller bearing (1) onto pinion (2), then
stake end of pinion using a staking tool or a round
nosed punch.
2. Press pinion inner tapered bearing cone (3) onto pin
ion (2) with wide portion of cone tow ard pinion teeth,
until seated against shoulder on pinion. Use bearing
replacer plates (J-3493) and an arb or press as shown
in Figure 15.
3. Press tapered roller bearing cups (6) and (9) into cage
until seated against cage shoulders.
4. Install pinion and bearing assem bly in pinion cage.
Install sam e bearing adjusting spacers (4) as removed
and tagged at disassembly.
N O T E : Som e axles also use a plain washer.
5. Press outer bearing cone (10) on pinion.
6. Press propeller shaft yoke (16) on pinion. Install
washer (18) and nut (19). T ighten nut to torque listed
in “ Specifications” at end of this publication.
7. C heck and adjust pinion bearing pre-load as instruct
ed under “ Pinion Bearing A d justm ent” later in this
publication.
8. Apply light film of sealer (13) on outer edge of seal
retainer to prevent loss of lubricant between retainer
and pinion cage, then press seal and retainer assembly
evenly into cage.
N O T E : Som e axles also use a flat w asher (12) under seal
retainer which should be installed first.
9. Install propeller shaft yoke (16) on pinion. Install
washer (18) and nut (19), then tighten to torque rec-
1 Bearing Cup
9 Clutch Plate
17 Thrust Washer
2 Bearing Cone
10 Thrust Washer
18 Side Gear - Right
3 Bolt
11 Bevel Gear
19 Thrust Washer
4 Support Case - Right
12 Support Case - Left
20 Spider Pinion
5 Thrust Washer
13 Nut
21 Differential Spider
6 Differential Assembly
14 Lock Wire
22 Side Gear - Left
7 Idler Pinion Pin
15 Cap Screw
23 Differential Case - Left
8 Idler Pinion
16 Differential Case - Right
T-4383
Figure 17— Com ponent* of Differential an d Planetary Assem bly
CHEVROLET SERIES 70-80 HEAVY DUTY TRUCK S H O P M A N U A L
Содержание 70 1969 Series
Страница 1: ...CHEVROLET HEAVY DUTY TRUCK SHOP MANUAL...
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Страница 403: ...TROUBLE ANALYSIS CHART ENGINE ELECTRICAL 6Y 32 CHEVROLET SERIES 70 80 HEAVY DUTY TRUCK SHOP MANUAL...
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Страница 807: ...TRANSMISSION AND CLUTCH 7 61 CHEVROLET SERIES 70 80 HEAVY DUTY TRUCK SHOP M AN U AL Kgure 2 Clark 401 Transmission...
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