GMC 1976 ZEO 6083 Maintenance Manual page 487

CAUTION :
Use pipe that closely fits I.D. of
bearing assembly but does not contact shaft.
d . Install sprocket to bearing assembly retain-
ing snap ring into groove in sprocket hub.
3. If necessary, install new hook type oil seal ring
on turbine shaft, (Note : original ring is plastic) .
NOTE :
Turbine and/or input shaft may appear
not to be pressed fully into the sprocket . Do not
attempt pressing shaft further as a specific
length dimension is held during initial assembly .
FRONT UNIT END PLAY CHECK
1 . Install Front Unit End Play Checking
Tool,
J-22241, into driven sprocket housing so that the
urethane on the tool can engage the splines in the
forward clutch housing. Let the tool bottom on the
mainshaft and then withdraw it approximately 1/8
inch and tighten 'nut on tool, Figure 36 .
2. Remove two of the 5/16" bolts from the driven
support housing.
Install 5/16" threaded slide hammer bolt with
jam nut into one bolt hole in driven support housing.
NOTE :
Do not thread slide hammer bolt deep
enough to interfere with forward clutch housing
travel .
3. Mount Dial Indicator, such as J-8001, on slide
hammer bolt and index indicator to register with the
Front Unit End Play Checking Tool, J-22241, Figure
36 and push tool down to remove slack.
Figure 36-Checking Front Unit End Play
TRANSMISSION
7- 39
4. Push and hold output flange upward . Place a
screw driver in case opening at parking pawl area
and push upward on output carrier.
5. Place another screw driver between the metal
lip of the end play tool and the driven sprocket hous-
ing and push upward on the metal lip of the end play
tool and read the resulting end play, which should be
between .003" and .024" .
The selective washer controlling this end play is
the thrust washer located between the pump cover
plate and the forward clutch housing. If more or less
washer thickness is required to bring the end play
within specifications, select the proper washer from
the chart below:
NOTE:
An oil soaked washer may tend to dis-
color so that it will be necessary to measure the
washer with a set of one inch micrometers to
determine its actual thickness.
6. Remove end play tool from transmission and
remove dial indicator and slide hammer bolt from
transmission .
Figure 37-Removing or Installing Oil Seal Rings
THICK-
NESS
COLOR
.060- .064
Yellow
.071-.075
Blue
.082-.086
Red
.093-.097
Brown
.104-.108
Green
.115-.119
Black
.126-.130 Purple