2. Differential Overhaul (10.5 Inch Axle)

2010 GMC Savana 3500 V8-6.0LSECTION 2. Differential Overhaul (10.5 Inch Axle)



Differential Overhaul (10.5 Inch Axle)

Disassemble Procedure

1. Remove the differential side bearings. Refer to Differential Bearing Replacement (Differential Bearing Replacement).
2. Remove the differential ring gear. Refer to Drive Pinion and Ring Gear Replacement (8.6, 9.5LD Inch Axles) (Drive Pinion and Ring Gear Replacement (8.6, 9.5LD Inch Axles)) Drive Pinion and Ring Gear Replacement (10.5 Inch Axle) (Service and Repair).




3. Separate the differential case (1).





Note: If the differential pinion gears, the differential side and the thrust washers are going to be reused, mark the components so they can be re-installed in their original location in the differential case.

4. Remove the pinion gears (2), thrust washers (1) and the differential spider (3) from the differential case (6).
5. Remove the differential side gears (4) and the thrust washers (5) from the differential case (5).

Assemble Procedure

1. Apply a small amount of the proper gear lubricant to the differential side gears and the differential pinion gears. Refer to Fluid and Lubricant Recommendations (USA and Canada) (Maintenance).





Note: If reusing the differential side and pinion gears, install them in the original position.

2. Install the thrust washers (5) differential side gears (4) into the differential case (6).
3. Install the differential pinion gears (2), thrust washer (1) on the differential spider (3).
4. Position the differential thrust washers (1), pinion gears (2) and the spider (3) in the differential case (5).




5. Align the arrows on the differential case halves.




6. Position the differential side gear (3) and the thrust washer (3) on the differential pinion gears (4).
7. Install the differential case half (1).
8. Install the differential ring gear. Refer to Drive Pinion and Ring Gear Replacement (8.6, 9.5LD Inch Axles) (Drive Pinion and Ring Gear Replacement (8.6, 9.5LD Inch Axles)) Drive Pinion and Ring Gear Replacement (10.5 Inch Axle) (Service and Repair).
9. Install the differential side bearings. Refer to Differential Bearing Replacement (Differential Bearing Replacement).

RENDER: 1.0x

NO RELATED

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • β€’ You smell fuel, burning insulation, or see smoke.
  • β€’ Brakes feel soft, pull hard to one side, or make grinding noises.
  • β€’ The engine overheats, stalls repeatedly, or misfires under load.
  • β€’ You are missing required tools, torque specs, or safe lifting equipment.
  • β€’ You are not confident in the next step or safety outcome.