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7A1-38
1977 PONTIAC SERVICE MANUAL
REAR UNIT END PLAY WASHER THICKNESS CHART
THICKNESS
IDENTIFICATION
Number and/or Color
2.90-3.01mm (0.1 14"-0.119")
1 Orange
3.08-3.19mm (0.121"-0.126")
2 White
3.26-3.37mm (0.128"-0.133")
3 Yellow
3.44-3.55mm (0.135"-0.14")
4 Blue
3.62-3.37mm (0.143"-0.147")
5 Red
3.80-3.91mm (0.150"-0.154")
6 Brown
3.98-4.09MM (0.157"-0.161")
7 Green
4.16-4.27mm (0.164"-0.168")
8 Black
4.34-4.45mm (0.17 1"-0.175")
9 Purple
e. Remove dial indicator and clamp assembly. Do not
remove J 25013 tools (Fig. 7A1-44).
NOTE: It may be necessary to tighten J 25013 adjusting
screw on output shaft to remove snap ring.
3. Using snap ring pliers, remove output shaft to selective
washer snap ring (Fig. 7A1-46).
4. Front Internal Gear:
Fig. 7A1-47 Removing Front Carrier and Roller Bearing
Assembly
:ig. 7A1-46 Removing Output Shaft to Selective Washer
Snap Ring
a. Remove front internal gear, rear selective washer and
-
tanged thrust washer.
b. Remove rear selective washer and thrust washer from
front internal gear.
5. Remove front carrier assembly and the front internal
gear to front carrier roller bearing assembly (Fig. 7A1-47).
NOTE: Models CN, CU and CZ use a front carrier with
2 pinions. All other models use 4 pinions.
NOTE: The front sun gear to front carrier thrust bearing
assembly may come out as the front carrier to removed.
6. Remove front sun gear and front sun gear to front
carrier roller thrust bearing assembly (Fig. 7A1-48).
NOTE: This thrust bearing requires only one thrust
race.
7. Input drum and rear sun gear assembly:
Fig. 7A1-48 Removing Thrust Bearing Assembly and
Front Sun Gear
a. Remove input drum and rear sun gear (Fig. 7A1-49).
b. Remove the 4 tanged input drum to reverse clutch
housing thrust washer from rear of input drum or from
reverse clutch housing.
8. Low and Reverse clutch housing assembly:
CAUTION: If low and reverse clutch housing
assembly has to be removed, the low and reverse
clutch piston travel must be checked.
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