Fluid · Front Differential
Front Differential
for 2020 GMC Sierra 2500HD 6.6L V8 Duramax Diesel · RWD
Fluid Type
75W-90 synthetic gear oil
Spec: GM Part No. 12378396
Capacity
3.7qt
3.5 L
Drain & Refill
3.7 qt
3.5 L
Change Interval
45,000 mi
72,405 km
Data quality
Book-style estimate
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Notes
9.76-inch front differential on 4WD models
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Other fluid systems on this vehicle
A/C Refrigerant
A/C Refrigerant
Brake Fluid
1.5 qt
Brake Fluid
1.5 qt
Coolant
30 qt
Coolant
30 qt
Engine Oil
10 qt
Engine Oil
10 qt
Power Steering
Power Steering
Rear Differential
3.8 qt
Rear Differential
3.8 qt
Transfer Case
2 qt
Automatic Transmission
18 qt
Automatic Transmission
18 qt
Washer Fluid
1.25 qt
Washer Fluid
1.25 qt