GMC 1986 P-Truck Service Manual page 407

4B-22 REAR AXLE
DRIVE PINION OIL SEAL
REPLACEMENT
(12-INCH RING G E A R -
FULL FLOATING AXLE)
• A pinion oil seal may be replaced on the Rockwell
-inch ring gear axle with the carrier assembly
1 2
installed in the vehicle.
Remove or Disconnect (Figure 30)
Tools Required:
J-8614-01 Companion Flange Holder and
Remover
J-22281 Pinion Oil Seal Installer
• Raise the vehicle.
1. Propeller shaft. Refer to PROPELLER SHAFT
(SEC. 4A).
Im portant
• Scribe a reference line on the pinion stem, pinion
nut and companion flange.
2. Cotter key (91) and nut (92) using J-8614-01.
3. Companion flange (94).
4. Bolts (97).
5. Oil seal retainer (95).
Figure 29—Rockwell Axle And Hub Detail
91. Cotter Key
92. Nut
93. Pinion Shaft
94. Companion Flange
Figure 30— Drive Pinion Oil Seal Detail
»
70. Bolt
71. Washer
72. Hubcap
73. Gasket
74. Axle Shaft
75. Axle Housing
76. Bracket
77. Wheel Bolt
78. Hex Bolt
79. Deflector
80.
Oil Seal
81.
Inner Bearing
82.
Brake Disc
83. Retaining Ring
84.
Outer Bearing
85. Spacer
86. Hub
87. Thrust Washer
88 Adjusting Nut
.
89. Lock Washer
90.
Nut F-01012
95. Oil Seal Retainer
96. Oil Seal
97. Bolt
F-01013