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International Automotive Technicians Network
Re: Mack tandem axle lubricant
Posted to HD/Fleet Forum on 6/1/2020

Has a standard procedure lube is filled until it run back out of each unit. Can lube oil migrate, yes. If there is a drain plug leak it needs to be corrected.

Another issue to check for is excess fluid leaks at an axle end. These should be wet bearing heavy ... Login to read more.