Another Question. T-Case Oil and Diff oil.

[PuddleJumper]

Diff oil is easy enough but whats the brand rec? I cannot seem to get google to give me a straight answer on T-case fluid tho. Does it use ATF or something? do i even need to change it at 20k? Figured i'd give it a once over while im doing diffs anyway. I plan on doing transmission at 30k.

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[whiteglad]

My 2022 owner's manual specifies ATF+4 for the transfer case on p. 399. It shows 75-85 diff lube but many of us have used 75-90 synthetic from Mobil or Valvoline, etc.

 

[PuddleJumper]

My 2022 owner's manual specifies ATF+4 for the transfer case on p. 399. It shows 75-85 diff lube but many of us have used 75-90 synthetic from Mobil or Valvoline, etc.

I haven't looked through my manual yet. But Im getting mixed answers on the rear being 75w-140. Do you know if thats true or not?

 

[whiteglad]

There have been recommendations to use 75-140 if towing, although not all Mopar vehicle's owners manuals say that.

 

[PuddleJumper]

There have been recommendations to use 75-140 if towing, although not all Mopar vehicle's owners manuals say that.

i tow and do recoveries on the reg. I'll check my manual first tho. thanks

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