Gear Oil
FRONT:
- Valvoline Conventional Gear Oil 75W-90 GL-5, GL-4 1 Quart - 820
- Valvoline SynPower Synthetic Gear Oil 75W-90 1 Quart - 975
- Red Line Synthetic Gear Oil GL-5+ 75W-90 1 Quart - 57904
REAR:
- Valvoline SynPower Synthetic Gear Oil 75W-140 GL-5, GL-4 1 Quart - 982
- Red Line Synthetic Gear Oil GL-5+ 75W-140 1 Quart - 57914
Other notes...
2018 owners manual specifies
Rear axle fluid:
Motorcraft® SAE 75W-85 Premium Synthetic Hypoid Gear Lubricant
XY-75W85-QL WSS-M2C942-A
tires
Rocky Mountain All Terrain 265 /70 R17 115T SL BSW Item #120816
$365 for 2 of the Rocky Mountain
FalkenWildpeak A/T4W265 /70 R17 115T SL BSW
Item #152103
$602 for 2 of the Falken Wild Peak.