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Thread: 2011 F150 rear diff clutch packs

  1. #1
    Join Date
    Nov 2002
    Location
    Lexington
    Posts
    19,836

    Default 2011 F150 rear diff clutch packs

    2011 Ecoboost 4wd with 3.73 rear gear, 103k miles. Complaint: popping noise when turning coming from rear and a shudder. Fix: replace rear clutch packs

    Pulling axle



    Rear carrier



    Carrier out



    Clutch packs



    More fuel = more boost!!

  2. #2
    Join Date
    Nov 2006
    Location
    Spartanburg
    Posts
    49,653

    Default

    Damn lucky it weren't the ball joints.

  3. #3
    Join Date
    Jan 2014
    Posts
    2,166

    Default

    Ecobullshit

  4. #4
    Join Date
    Jun 2010
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    charleston
    Posts
    8,600

    Default

    WTF are drum brakes doing on a 2011 F150- the last F150 I have with drums is a 1999

  5. #5
    Join Date
    Oct 2007
    Location
    Blythewood
    Posts
    16,975

    Default

    Quote Originally Posted by Bad Habit View Post
    WTF are drum brakes doing on a 2011 F150- the last F150 I have with drums is a 1999
    Emergency brake.
    "Freedom Isn't Free"
    _Spc. Thomas Caughman
    1983-2004

    Quote Originally Posted by Dook View Post
    Go tigers!

  6. #6
    Join Date
    Jan 2010
    Location
    Greenville, SC
    Posts
    4,989

    Default

    Additive friction modifier is the most generic name I have ever heard. It could be anything. Urin would technically modify the coefficient of friction.

  7. #7
    Join Date
    Oct 2007
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    Blythewood
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    Default

    I'm just curious as to how in the hell the underside of a 2011 pickup is still that clean...
    "Freedom Isn't Free"
    _Spc. Thomas Caughman
    1983-2004

    Quote Originally Posted by Dook View Post
    Go tigers!

  8. #8
    Join Date
    Nov 2002
    Location
    Lexington
    Posts
    19,836

    Default

    Uses ebrake shoes inside rotor for emergency brakes. Common concept.
    More fuel = more boost!!

  9. #9
    Join Date
    Oct 2007
    Location
    Blythewood
    Posts
    16,975

    Default

    Quote Originally Posted by KRT View Post
    Uses ebrake shoes inside rotor for emergency brakes. Common concept.
    I had already done said that, old timer.
    "Freedom Isn't Free"
    _Spc. Thomas Caughman
    1983-2004

    Quote Originally Posted by Dook View Post
    Go tigers!

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