K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
Seals and Gaskets: Service and Repair
Rear Axle
Semi-Floating Axle 8-1/2, 8-5/8 and 9-1/2 Inch Ring Gear
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Tools Required:
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J 8614-01 Companion Flange Holder:
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J 8614-02 Companion Flange Remover
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J 24388 Pinion Oil Seal Installer (American Axle 9 1/2 inch ring gear axle)
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J 22836 Pinion Oil Seal Installer (American Axle 8 1/2 and 8 5/8 inch ring gear axles)
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J 22804 Pinion Oil Seal Spacer
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The pinion oil seal and the companion flange may be replaced with the carrier assembly installed in the vehicle.
REMOVE OR DISCONNECT
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Raise the vehicle on a hoist and support with safety stands.
1. Rear wheels and drums.
Important:
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It is essential that the positions of all driveline components relative to the propeller shaft and axles be observed and accurately reference
marked prior to disassembly. These components include the propeller shafts, drive axles, pinion flanges, output shafts, etc. All components
must be reassembled in the exact relationship to each other as they were when removed. Specifications and torque values, as well as any
measurements made prior to disassembly, must be followed.
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Accurately mark the installed position of the rear propeller shaft.
2. Propeller shaft.
A. Use a piece of tape to hold the bearing caps.
B. Secure the propeller shaft up and out of the way so as not to put unnecessary stress on the universal joints.
C. Measure, using an inch-pound torque wrench, the amount of torque required to turn the pinion. Record this measurement for reassembly. This
will give combined pinion bearing, seal, carrier bearing, axle bearing and seal preload.
D. Make an accurate alignment mark on the pinion stem, pinion flange, and pinion flange nut. Also record the number of exposed threads on the
