Front Differential

for 2021 GMC Sierra 1500 5.3L V8 · 4WD

Fluid Type

75W-90 synthetic gear oil

Spec: GM Spec 9985115 or API GL-5

Capacity

2.5qt

2.36 L

Drain & Refill

2.5 qt

2.36 L

Notes

4WD configuration front differential. Use GM limited-slip additive (19299549) if equipped with locking differential. Service if towing or severe duty.

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Other fluid systems on this vehicle

Automatic Transmission

12 qt

Washer Fluid

1.2 qt

🔧 Database maintained under the daily editorial review of Chris Hackleman · Master Technician · 20+ years and Jeff Moore · Master Lexus & Toyota Mechanic · 20+ years. Spot an error? Use the Help link above — a human reads every report.

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