Post your latest differential oil/transfer case change

[97f150]

2018 Tundra- 167,000 miles on truck- 87,000 miles on fluids mentioned below (yeah I got slack)
Transfer Case
Out: Ravenol 75w
In: Redline MT-LV

Front and Rear Diff
Out: Ravenol 75w85
In: Royal Purple 75w90

Will be doing the same on 2019 4Runner in the next couple weeks from factory fill.

 

[nthach]

98 Ranger 2WD
Out - Chevron or Pennzoil 80W-90
In - Vavoline 75W-90 synthetic

I had a Fel-Pro gasket but wanted to use up a tube of Permatex Right Stuff Gray 90 minute, so used RTV to seal it.

 

[oldhp]

2022 Dodge Challenger R/T, 6 speed Tremec. Drained out FF, put in FRAM ATF+4.

 

[cmarshall78]

2008 F150, 184k rear diff
Out: factory fill
In: Valvoline 75w140 with new diff cover and lubelocker gasket