gmc Workshop Repair Guides

GMC Workshop Service and Repair Manuals

Drive Pinion Flange/Yoke and/or Oil Seal Replacement (8.6, 9.5 Inch Axles)|Page 5561 > < Drive Pinion Flange/Yoke and/or Oil Seal Replacement (8.6, 9.5 Inch Axles)|Page 5559
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Drive Pinion Flange/Yoke and/or Oil Seal Replacement (9.75, 10.5 and 10.75 Inch Axles)

Drive Pinion Flange/Yoke and/or Oil Seal Replacement (9.75, 10.5 and 10.75 Inch Axles)

Special Tools

*

J 8614-01  Flange and Pulley Holding Tool

*

J 45710  Pinion Bearing Oil Seal Installer

Removal Procedure

Note:  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   (See: Maintenance/Vehicle Lifting/Service and Repair).
2. Disconnect the propeller shaft from the rear axle pinion yoke. Refer to One-Piece Propeller Shaft Replacement   (See: Drive/Propeller Shafts,

Bearings and Joints/Drive/Propeller Shaft/Service and Repair/One-Piece Propeller Shaft Replacement) or Two-Piece Propeller Shaft Replacement 
 (See: Drive/Propeller Shafts, Bearings and Joints/Drive/Propeller Shaft/Service and Repair/Two-Piece Propeller Shaft Replacement).

3. Place an alignment mark between the pinion and the pinion yoke.

4. Install the J 8614-01   as shown.
5. Remove the pinion nut while holding the J 8614-01  .

6. Remove the washer.

Drive Pinion Flange/Yoke and/or Oil Seal Replacement (8.6, 9.5 Inch Axles)|Page 5561 > < Drive Pinion Flange/Yoke and/or Oil Seal Replacement (8.6, 9.5 Inch Axles)|Page 5559