Anyone have issues with the front diff
I have a 2015 f150.it was making a whining noise at around 60km. had to have he front differential Worked on. Now it's happening again anyone else having the same issues
When the front differential was refilled, did they refill with synthetic hypoid gear lubricant per SSM 45087:
SSM 45087 - 2009-2015 F1504x4 Front Pinion Bearing Damage
If pinion bearing damage is noted during the repair of the Front Axle on 2009 -2015 F150 4x4 units operated in severe cold climates. Use Motorcraft XY-75W85-QL Synthetic Hypoid Gear Lubricant upon reassembly and fluid fill. The lube will offer better pinion bearing lubrication in severe arctic conditions. Only a small number of units operated in the most severe climates will benefit from the using the synthetic lube. Do not replace thelube unless you have identified a concern with the pinion bearing (or as perrecommendation of Ford Hotline)
Note: starting in 2017 this is now the recommended fluid for all climates
Last edited by tmcolegr; Sep 19, 2017 at 07:00 PM.
My 2016's sprung a leak. Fortunately it was spotted by an "oil changer" before it lost too much fluid (he saw the gasket was starting to leak). While I was waiting to get it in for a warranty repair I felt it was running a bit rough (or it could just have been my imagination).

