Suburban 4WD V8-5.3L (2008)
Pinion Flange: Service and Repair
Rear Drive Axle
Drive Pinion Flange/Yoke and/or Oil Seal Replacement (8.6/9.5 Inch Axle)
Drive Pinion Flange/Yoke and/or Oil Seal Replacement (8.6/9.5 Inch Axle)
Tools Required
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J 8614-01 Flange/Pulley Holding Tool
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J 22388 Rear Axle Pinion Oil Seal Installer - Rear
Removal Procedure
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 and support the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Remove the rear propeller shaft. Refer to Rear Propeller Shaft Replacement (See: Drive/Propeller Shafts, Bearings and Joints/Drive/Propeller
Shaft/Service and Repair/Rear Propeller Shaft Replacement) .
3. 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:
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The pinion bearings
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The pinion oil seal
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The differential case bearings
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The axle bearings
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The axle seals
4. Place an alignment mark between the pinion and the pinion yoke.
