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Thread: Tranny oil change..

  1. #1
    Join Date
    Dec 2005
    Location
    Klamath falls/keno Oregon
    Posts
    334

    Default Tranny oil change..

    Is there a sticky or a link on a how to?
    I have 71,000 miles since my last change..
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    Kennedy dual lift pump
    Banks air intake

  2. #2
    Join Date
    Apr 2001
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    CA
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    Default

    The "how to" has been discussed several times. We probably should make one a sticky. Are you doing a drain/fill, or a full flush? They are detailed here, but I don't remember where, short of searching for it. I've written about it several times, including a step-by-step for a full flush.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  3. #3
    Join Date
    Dec 2005
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    Klamath falls/keno Oregon
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    Default

    Probably a drain and fill..my trans has about 200,000 miles on it, it’s a rebuilt..
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    Kennedy dual lift pump
    Banks air intake

  4. #4
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,094

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    I just typed up a lengthy post for service an ALLISON tranny, then realized, you have a ZF. Just drain and fill. In the future, perhaps a bit sooner. 71K is a bit long. Pay attention to what comes out of it, and on the drain plug. Use a quality synthetic fluid (Mobil 1, Amsoil, Redline, Royal Purple, etc.).
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

  5. #5
    Join Date
    Dec 2005
    Location
    Klamath falls/keno Oregon
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    Default

    Thanks....
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    Kennedy dual lift pump
    Banks air intake

  6. #6
    Join Date
    Dec 2005
    Location
    Klamath falls/keno Oregon
    Posts
    334

    Default

    Did the change, dropped the pan..there was a dusting of metal on both magnets barely noticeable, and the oil was red like it was new..
    06 1ton 4X4 duramax/6speed ext.cab WT
    Hummer wheels :^)
    Kennedy dual lift pump
    Banks air intake

  7. #7
    Join Date
    Apr 2001
    Location
    CA
    Posts
    13,094

    Default

    That sounds good. A little "dusting" is normal and expected, especially for the miles. Chunks or shavings would not be good.
    1985 Blazer 6.2
    2001 GMC 2500HD D/A
    dmaxmaverick@thedieselpage.com

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