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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 214 (Rear Drive Axle) >> Repair Instructions >> Drive Pinion Flange/Yoke and/or Oil Seal Replacement (10.5 Inch Axle) >> Removal Procedure

Removal Procedure

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    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.
  1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
  2. Remove the tire and wheel assemblies. Refer to Tire and Wheel Removal and Installation .
  3. Remove the rear wheel axle shafts. Refer to Rear Axle Shaft and/or Gasket Replacement .
  4. Remove the propeller shaft from the vehicle. Refer to Rear Propeller Shaft Replacement
    5. Fig 1: Measuring Pinion Rotating Torque
    GM661077Courtesy of GENERAL MOTORS CORP.
  5. Using an inch-pound torque wrench, measure the amount of torque required to rotate the pinion. Record this measurement for reassembly. This will give the combined preload for the following components:
    • The pinion bearings
    • The pinion pilot bearing
    • The pinion oil seal
    • The differential case bearings
    6. Fig 2: View Of Pinion Shaft & Pinion Yoke Alignment Marks
    GM788905Courtesy of GENERAL MOTORS CORP.
  6. Place an alignment mark between the pinion and the pinion yoke.
    7. Fig 3: Holding Pinion Yoke With Special Tool
    GM661080Courtesy of GENERAL MOTORS CORP.
  7. Install the J 8614-01  as shown.
  8. Remove the pinion nut while holding the J 8614-01  .
  9. Remove the washer.
    10. Fig 4: Holding Pinion Yoke With Special Tool
    GM661074Courtesy of GENERAL MOTORS CORP.
  10. Install the J 8614-2 (2) and the J 8614-3 (3) into the J 8614-01  (1) as shown.
  11. Remove the pinion yoke by turning the J 8614-3 (3) clockwise while holding the J 8614-01  (1).
    12. Fig 5: Drive Pinion Seal
    GM1961124Courtesy of GENERAL MOTORS CORP.
  12. Using a suitable tool, remove the drive pinion seal (1).
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