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2021 GMC SIERRA 2500HD
6.6L V8 L8T•4WD•AUTOMATIC•gas•turbo
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Repairs0Labor508Torque3525Fluid10DTC1253Battery1Maintenance0Recalls0
Fluid · Rear Differential

Rear Differential

for 2021 GMC Sierra 2500HD 6.6L V8 L8T · 4WD
Fluid Type
75W-90 synthetic gear oil
Spec: GM Part No. 12378396
Capacity
3.8qt
3.59 L
Drain & Refill
3.8 qt
3.59 L
Change Interval
45,000 mi
72,405 km

Notes

11.5-inch AAM rear axle. Add limited slip additive if equipped

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Other fluid systems on this vehicle

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