Chevrolet Chevelle 1977 Repair Manual page 245

Fig. 7 A - 3 7 A - R e m o v in g Rear U n it Parts
REAR
CARRIER
ASSEMBLY
Fig. 7 A - 3 8 A - R e m o v in g T h r u s t W a sh e rs
a. Remove rear internal gear to rear sun gear roller
thrust bearing assembly off rear internal gear.
b. Remove gear internal gear off output shaft (Fig. 7A-
39A).
6. Turn transmission to horizontal position and remove
J-25013-5 and J-25013-1 tools from case. Turn transmission
to vertical position with rear end up.
REAR INTERNAL GEAR
OUTPUT SHAFT
Fig. 7A-39A--Removing Rear Internal Gear
AUTOMATIC TRANSMISSION
THRUST WASHER
Fig. 7 A - 4 0 A - R e m o v in g Rear Oil Seal
7. If necessary, remove real oil seal (Fig. 7A-40A).
MANUAL SHAFT AND
PARKING PAW L PARTS
Removal
1. Turn transmission to horizontal position, oil pan side
up.
2. If necessary, remove manual shaft and parking
linkage as follows:
a. Remove hex nut which holds inside detent lever to
manual shaft (Fig. 7A-42A).
b. Remove parking brake actuator rod and inside
detent lever assembly.
c. Rmeove m anual shaft retaining pin from case and
slide manual shaft out (Fig. 7A-43A).
d. Inspect manual shaft to case seal for damage. If
necessary, pry out manual shaft seal using screwdriver (Fig.
7A-44A).
e. Remove parking brake bracket (Fig. 7A-45A).
f. Remove parking brake pawl shaft retaining pin (Fig.
7A-46A).
g. Using 6.3mm (No. 4) easy out, remove parking brake
pawl cup plug and discard (Fig. 7A-47A).
NOTE:
G rind approximately 20mm (3 /4") from end
of 6.3mm (No. 4) easy out to remove cup plug.
h. Using sheet metal screw or 4mm (No. 3) easy out,
remove parking brake pawl shaft (Fig. 7A-48A).
i. Remove parking pawl and return spring.
INSPECTION AND REASSEMBLY
Inspection of Case Assembly
NOTE:
Model CN, CU and CZ cases have a tapped
hole with a hex head plug or a pressure switch near the
interm ediate servo bore. Do not remove the switch or
plug unless replacement is required.
1. Inspect case assembly for damage, cracks, porosity
or interconnected oil passages. If case is porous, refer to
porosity repair.
2. Inspect orifice plug in the interm ediate servo bore.
If the plug requires replacement, place the new plug, orifice
end first, into plug hole in case. Drive plug flush to slightly
below top of plug hole.
3. Inspect the exhaust vents for being opened.
4. Inspect reverse
intermediate servo bore, speedometer bore and snap ring
grooves for damage.
(200)7A-9
clutch lugs, governor bore,