Chevrolet Chevelle 1977 Repair Manual page 360

(400)7A-40
OUTPUT SHAFT, REAR INTERNAL GEAR, SUN
GEAR AND SHAFT
Output Shaft
1. Inspect bushing for wear or galling. If replacement is
necessary, proceed as follows:
a. Thread Tool J-2 1465-16 into bushing and using Slide
H am m er J-2619, remove bushing.
b. Using Tool J-2 1465-1 with drive handle J-8092, install
bushing into place until tool bottoms.
2. Inspect bearing and thrust washer surfaces for
damage.
3. Inspect governor drive gear for rough or damaged
teeth.
4. Inspect splines for damage.
5. Inspect drive lugs for damage.
6. Inspect speedometer drive gear.
Inspection of Rear Internal Gear
1. Inspect gear teeth for damage or wear.
2. Inspect splines for damage.
3. Inspect gear for cracks.
Inspection of Sun Gear
1. Inspect gear teeth for damage or wear.
2. Inspect splines for damage.
3. Be sure oil lubrication hole is open.
Inspection of Sun Gear Shaft
1. Inspect shaft for cracks or splits.
2. Inspect splines for damage.
3. Inspect bushings for scoring or galling. If necessary
tp replace, proceed as follows:
SUN GEAR SHAFT BUSHING-FRONT AND REAR
Remove
With sun gear shaft properly supported, using Tool J-
21465-15, with slide ham m er and A dapter J-2619, remove
bushing.
Replace
Using Tool J-2 1465-5 with Driver Handle J-8092 press
or drive replacement bushing into place until tool bottoms.
INSPECTION OF M A IN SHAFT
1. Inspect shaft for cracks or distortion.
2. Inspect splines for damage.
3. Inspect ground bushing journals for damage.
4. Inspect snap ring groove for damage.
5. Make sure that lubrication holes are open.
NOTE:
If replacement of mainshaft is required, make
sure that the orifice cup plug in the service mainshaft
is removed.
INSPECTION OF FRONT AND REAR BANDS,
SUPPORT TO CASE SPACER
1. Inspect lining for cracks, flaking, burning, or
looseness.
2. Inspect bands for cracks or distortion.
3. Inspect end for damage at anchor lugs or apply lugs.
4. Inspect support to case spacer for burrs or raised
edges, if present remove with stone or fine abrasive.
INSPECTION OF CASE EXTENSION - ALL
EXCEPT CL MODEL
1. Inspect bushing for excessive wear or damage. If
replacement is necessary, remove rear seal and with extension
housing properly supported, remove bushing as follows:
OVERHAUL MANUAL
a. (All except CA and CB Models) Using tool J-2 1465-
17, with Driver Handle J-8092, drive or press replacement
bushing into place, flush to .010 below oil seal counter bore
area. Stake bushing, using tool J-2 1465-10. Stake marks to
be in bushing lubrication grooves.
b. (CA and CB Models) Using Tool J-21424-9 with
Driver Handle J-8092, drive or press replacement bushing
into place flush to .010 below oil seal counter bore area. Stake
bushing, using tool J-2 1465-10 (or J-8400-22). Stake marks
to be in bushing lubrication grooves.
2. Inspect gasket mounting face for damage.
3. Inspect housing for cracks or porosity.
4. Be sure rear seal drain back port is not obstructed.
INSPECTION OF CASE EXTENSIO N-
CL MODEL (FIG. 7A-133C)
1. Inspect seal (case extension to case) groove for
damage.
2. Inspect for cracks, or porosity.
3. Inspect dowel pin in rear face for damage.
4. Inspect oil seal for damage. If replacement is required,
proceed as follows:
a. Pry oil seal from extension.
b. Apply non-hardening sealer to outside of new oil seal,
and install oil seal into case extension using tool (J-24057)
(see Fig. 7A-171C).
5. Inspect ball bearing assemblies. If they are damaged,
or if they require cleaning, proceed as follows:
a. Remove rear seal.
b. Remove snap ring.
c. Remove ball bearings and bearing spacer, using a brass
rod on the outside race of bearing. An arbor press can be used
if tool to press bearing out is located on outer race of bearing.
C A U TIO N :
balls.
d. Install ball bearing assembly and spacer, bearing first.
e. Install ball bearing assembly and snap ring.
f. Install new rear oil seal.
RING
Fig. 7A-1 33 C -M od el CL Case Extension
DO N O T locate against inner race or
SPACER CASE EXTENSION