Jay2jay

Just got this 2020 f150 4x4 XL 5.0l . Performed an oil change and went through and checked the rear differential and transfer case oil levels. Both were quite a ways now no where near the fill hole. This truck had an impeccable service record and the dealer did the last service. Are these levels suppose to be below the fill plug? I have not purchased a manual yet. Any help would be appreciated. The dealer I bout it from is 2-1/2 hrs. away with no traffic.

AHenry014

For at least the rear diff, the spec allows the fluid level to be below the fill port, i.e. "fluid level to be within 10mm of bottom of fill port". The info is searchable. I am not aware if the Tcase also has this allowability.

Barry_Vee

Same thing for T case. Mine have been full since first DIY fluid change.

2011 XLT Screw 4x4 3.5l 3:55LS