On Vehicle Service; Drain And Fill; Rear Oil Seal - GMC G Service Manual

DRAIN AND FILL

H Remove or Disconnect (Figures 1 and 2)
1. Filler plug (102).
2. Drain plug (103).
3. Transmission oil.
• Catch the oil in a pan.
110
100. Spring Washer
101. Screw
102. Filler Plug
103. Drain Plug
104. Transmission
105. Seal
108. Speedometer
Driver Gear
Figure 1 — Transmission and Components
(89MM 4 Speed OD)

ON VEHICLE SERVICE

109
109. Seal
110. Sleeve
111. Adapter
112. Speedometer
Cable
113. Seal
114. Plug
L00284
MANUAL TRANSMISSION 7B-3
H Install or Connect (Figures 1 and 2)
1. Drain plug (103).
2. New transmission oil. Refer to MAINTENANCE AND
LUBRICATION (SEC. 0B) for lubricant specification.
3. Filler plug (102).

REAR OIL SEAL

REAR EXTENSION SEAL (89MM 4 SPEED OD)
M Remove or Disconnect (Figure 1)
• Raise the vehicle.
1. Transmission oil.
2. Propeller shaft. Refer to PROPELLER SHAFT (SEC.
4A).
3. Seal (105).
K H Install or Connect (Figures 1 and 3)
Tool Required:
J 21426 Rear Extension Seal Installer.
1. Sealant (GM Part No. 1052942) on the outside of a
new seal (105).
2. New seal (105) using J 21426 (figure 3).
• Fill between the seal lips with chassis grease.
Propeller shaft. Refer to PROPELLER SHAFT (SEC.
3.
4A).
4. New transmission oil. Refer to "Drain and Fill" in this
section.
•