Fluid · Rear DifferentialRear Differentialfor 2021 GMC Yukon 3.0L I6 Duramax Diesel · 4WDFluid TypeACDelco 75W-90 Synthetic Gear OilCapacity2qtOther fluid systems on this vehicleBrake FluidCoolant10 qtEngine Oil7 qtFront Differential1.5 qtPower SteeringTransfer Case2.5 qtAutomatic Transmission13.5 qtWasher Fluid3.5 qt📝 Suggest a correction to this fluid spec