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2007 GMC Yukon Diff and T-Case fluid

Discussion in 'General Chevy & GM Tech Questions' started by jtjtbaker, Aug 18, 2014.

  1. jtjtbaker

    jtjtbaker New Member

    I saw a thread that determined the lubricant for the diff which looked right but the T-Case, how do you identify the type of T-case and isn't there an additive in addition to the fluid or is it just automatic transmission fluid dependent on the T-case?
  2. Pikey

    Pikey Moderator Staff Member 2 Years ROTM Winner 1000 Posts

    The tcase should use GM only fluid, you can only get it at the dealer. The fluids should be listed in the owners manual
  3. jtjtbaker

    jtjtbaker New Member

    Hey thanks Pikey

    - - - Updated - - -

    The Yukon did not come with an owners manual but the one I downloaded has a T-CASE with StabiliTrak(which I have) calling for Dexron III H spec and another T-CASE 4 wheel drive calling for an Auto-Trak II fluid. Any thoughts on the differences in the T-Cases.

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