This is the Ford XY75w85QL Motorcraft 75w85 Synthetic Hypoid Gear lubricant used on many 2015 and newer Ford applications. Check your owner's manual and/or the rear axle assembly for the tag stating the use of this fluid. The part number is XY-75w85-QL. Ford spec is WSS-M2C942-A. This is sold by the quart. 

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Rear axle fluids guide chart on our Reference info page.