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2021 GMC SIERRA 3500HD
6.6L V8 Duramax Diesel•4WD•AUTOMATIC•diesel•turbo
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Repairs0Labor507Torque3520Fluid10DTC1103Battery1Maintenance0Recalls0
Fluid · Rear Differential

Rear Differential

for 2021 GMC Sierra 3500HD 6.6L V8 Duramax Diesel · 4WD
Fluid Type
75W-90 synthetic gear oil
Spec: API GL-5
Capacity
7.4qt
7 L
Drain & Refill
7.4 qt
7 L
Change Interval
50,000 mi
80,450 km

Notes

11.5-inch AAM rear axle. Add limited-slip additive if equipped with locker (RPO G80). Use GM P/N 19329470 or equivalent.

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Other fluid systems on this vehicle

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