2004 Denail - Auto Trak II or Dexron III?

DAA

Well-Known Member
Supporting Member
Going to change fluid in the diffs and transfer case of my wife's 2004 Yukon Denali tomorrow.

Does anyone have access to the FSM, or just know, whether the transfer case needs Auto Trak II fluid? I was googling around just looking for fluid capacities and pretty much everywhere shows the Auto Trak for the case, but the owners manual clearly states Dexron III.

Guess I can just check it and see whether it's blue or not. But would like to pick up everything I need at lunch today and not have to make a parts run after I start draining it. And the Auto Trak is expensive stuff.

Anyone know?

Thanks!

- DAA
 

DAA

Well-Known Member
Supporting Member
It is :). Went ahead and picked it up, figured the Auto Trak couldn't hurt even if it was supposed to be Dexron but putting Dexron in when it was supposed to be Auto Trak would be bad. The stuff that came out was blue, and that's what I put back in.

- DAA
 
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