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Dana 60 Oil Channel

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When using a reverse rotation front axle in the rear, the oil flow is not the same, since the gears are turning backwards. Both the Dana 60 shown and the Dana 44 have oil channels to divert the oil to the pinion bearings, but no way for the oil to come back out except through the bearings. At highway speed this can lead to overheating of the pinion bearings due to the lack of sufficient cooling and lubrication.