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  • 1 Post By 2COR517

Transfer case fluid?

This is a discussion on Transfer case fluid? within the Technical / Maintenance forums, part of the General Discussion category; Truck: 88 GMC K1500.. what fluid does the transfer case take?...

  1. #1
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    Transfer case fluid?


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    Truck: 88 GMC K1500.. what fluid does the transfer case take?

    1988 GMC, 4x4, G80, 5-Speed, 350H.O. Crate
    2001 Mitsubishi Eclipse GS 2.4
    2008 Chevy Trailblazer LT I6
    1992 Cadillac Deville touring, 4.9L
    1969 Cadillac Eldorado, Totaled 11/14/11

  2. #2
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    Re: Transfer case fluid?

    ATF - Automatic Transmission Fluid. Full Synthetic ATF is best, like Mobil1 or Amsoil. If the age/condition of the fluid is unknown, run some cheapie Dex/Merc for a couple weeks. Then drain and refill with the good stuff.

    Most importantly, make sure you can remove the fill plug BEFORE removing the drain plug.
    New_Movement_MD likes this.

  3. #3
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    Re: Transfer case fluid?

    That little tip has never crossed my mine. It sure is a good one though. Would hate to drain and not be able to refill. Thanks.

  4. #4
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    Re: Transfer case fluid?

    Quote Originally Posted by 2COR517 View Post
    ATF - Automatic Transmission Fluid. Full Synthetic ATF is best, like Mobil1 or Amsoil. If the age/condition of the fluid is unknown, run some cheapie Dex/Merc for a couple weeks. Then drain and refill with the good stuff.

    Most importantly, make sure you can remove the fill plug BEFORE removing the drain plug.


    Great advice on the fill plug, and old mechanic taught me that a long time ago.

 

 

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