Avalanche 1500 2WD V8-5.3L VIN Z Flex Fuel (2005)
Drive Pinion Housing and/or Seal Replacement
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Tools Required
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J 44414 Pinion Seal Installer
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J 22912-01 Split-Plate Bearing Puller
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J 24433 Pinion Cone and Side Bearing Installer
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J 37624 Pinion Bearing Installer
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J 8092 Universal Driver Handle - 3/4 in - 10
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J 8608 Rear Pinion Bearing Race Installer
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J 8614-01 Flange/Pulley Holding Tool
Removal Procedure
1. Important: Observe and mark the positions of all the driveline components, relative to the propeller shaft and the axles, prior to disassembly.
These components include the propeller shafts, drive axles, pinion flanges, output shafts, etc. Reassemble all the components in the exact places in
which you removed the parts. Follow any specifications, torque values, and any measurements made prior to disassembly.
Raise the vehicle. Refer to Vehicle Lifting
2. Drain the axle lubricant.
3. Remove the axle shafts.
4. Reference mark the rear propeller shaft (3) to the rear axle pinion yoke (4).
5. Disconnect the propeller shaft from the axle. Wrap the bearing caps with tape in order to prevent the loss of bearing rollers .Support the propeller
shaft as necessary.
6. Measure the amount of torque required to rotate the pinion and the ring gear. Use an inch-pound torque wrench. Record this measurement for
reassembly. This will give the combined preload for the following components:
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The pinion bearings
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The pinion pilot bearing
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The pinion oil seal
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The differential case bearings
