Chevrolet 1977 10 Series, Руководство по ремонту, Страница: 89 / 468

REAR AXLE DIFFERENTIAL 4B-17
flange surface w hich m ates w ith rin g gear. C lean all
surfaces.
3. L iberally coat the d ifferen tial case pilot w ith hypoid
lubricant. Pre-align rin g g e a r and differen tial case
bolt holes, and press on a d a p to r plug J-8107-4 to
in itially sta rt ring g ea r on case pilot, as shown in
figure 5B.
4. S tart all rin g gear bolts d u rin g in itial assem bly to
m a in ta in bolt hole alig n m en t. D raw up all bolts
evenly, using a criss-cross p a tte rn to avoid cocking
the g ear on the case.
5. Insure th at the g ear is seated firm ly ag ain st the
case, then torque the bolts to 90 ft. lbs. for
passen g er cars, and 60 ft. lbs. fo r truck m odels.
Reassembly
l. Install thrust w ashers an d side gears into case. If
o rig in al parts are being reused, replace in orig in al
positions.
2. Position p in io n s an d th ru st w ashers th ro u g h loading
hole in case 180° a p a rt so they en g ag e side gears.
3. R otate gears until the d ifferen tial p in io n bores and
the case sh a ft holes are alig n ed .
4. Install p in io n sh a ft a n d lock screw. It is not
necessary to torque lock screw until axle sh afts are
installed.
5. D ifferential m ay be installed in c a rrie r now, or
a fte r service is p e rfo rm e d on the drive pin io n .
Installation and Adjustment
1. Check co n d itio n o f b earin g , b e a rin g cups, cup seat
in c a rrie r an d c a rrie r caps to m ake sure th a t they
are free from nicks, burrs a n d fo reig n m aterial.
2. L ubricate b earin g s w ith axle lu b rican t; position
cups on p ro p e r b earin g , th en install differential
assem bly in c a rrie r and su p p o rt the assem bly to
prev en t it from falling.
3. Install strap J-22779-6 on left b e a rin g by tig h ten in g
b earin g bolts altern ately a n d evenly to snug fit.
4. W ith the rin g g e a r tight a g ain st the p in io n gear
(.000" to .001" backlash) in sert g au g in g Tool
J-22779 betw een the left b e a rin g cup an d carrie r
housing as show n in F ig u re 6B.
5. W hile oscillating tool, tu rn ad ju stin g nut clockwise
until a noticeable d ra g is p roduced.
6. T ighten lock bolt on side o f tool.
7. Between the rig h t b e a rin g an d c a rrie r, install
Service S pacer A (.170"), Service S him B and
Feeler G au g e C. T hickness o f F eeler G a u g e m ust
be sufficient to p roduce a slight “ d ra g ” w hen m oved
betw een c a rrie r an d Service Shim .
8. Now m easure the above d im en sio n s as show n in
Fig. 7B.
a. U sing a m icro m eter as in F ig u re 8B m easure the
thickness o f J-22779 in a m in im u m o f three
Fig. 6B—Installing Gauging Tool