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Thread: 2010+ Gear install kit vs 2009 and older

  1. #1
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    2010+ Gear install kit vs 2009 and older

    Hey guys, there is a gear install kit in the buy and sell im interested in for my 07 GT500 but it says for 2010+. Anyone know the difference between install kits for 10+ and 09 and older?
    If I look on american muscle, it says the 2010+ kit will fit 05 to 09 GT's? Is it something to do with the 31 spline diffs? Or perhaps something ive heard about is difference in Pinion nut?

  2. #2
    Admin ZR's Avatar
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    Lot of confusion what yrs those kits fit, thought difference was pinion bearing but not positive.

  3. #3
    Member fast Ed's Avatar
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    Bigger rear pinion bearing on the newer ones.
    12 GT500 coupe
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    So I can't use the 2010+ kit on my 2007 gt500 I suppose then unless I get a separate rear pinion bearing?

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    It would also appear that the GT500 has a different bearing than the GT's?

    https://www.fordgt500.com/threads/sh...ng.1914/page-2

  6. #6
    Member fast Ed's Avatar
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    The original part number on it for the early GT500 (7R3Z-4625-A) changes to the same number as the 10+ GTs (9L3Z-4630-A). Here is a note from the Ford system:


    SHIM USED ON SHELBY IS NOT REQUIRED WHEN USING THE 9L3Z4630A
    THE SHIM IS ALSO USED ON THE BULLITT AND HAS TO BE REMOVED
    NEW BEARING AND CUP MUST BE USED TOGETHER
    THE STACK HEIGHT IS THE BEARING SEAT IN THE CUP AND MEASURE
    FROM THE BACK OF THE CUP TO THE BACK OF THE ROLLER
    STACK HEIGHT IS 1.045". CUP AND CONE WILL BE MARKED STD4183


    not sure if this applies to aftermarket bearings as well though ...
    12 GT500 coupe
    81 VW Scirocco S
    Instagram: ed._nicholson
    Your Ford dealer in the west GTA - Kennedy Ford Sales
    www.kennedyford.ca - please use the Kennedy Ford SVT TMC account for parts inquiries

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    Thanks Ed I appreciate the info!

  8. #8
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    I know the 2013/14 GT500 housings use yet again a larger size pinion bearing. When I built my 8.8 based on a 13 GT500 housing the inner pinion bearing that came from the Ford Racing M-4210-B1 kit was way too small for the DR3Z-4010-A axle housing.


    Built not bought! Follow this link to my 08 GT/CS Air Lift Performance Suspension Install Thread or this link to my Garage Thread

    My biggest fear is when I die my wife will sell my car and parts for what I told her they cost!

  9. #9
    Member fast Ed's Avatar
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    That's correct Scott, the OEM number for reference on those is 6L2Z-4625-AB.

  10. #10
    Admin ZR's Avatar
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    Track pack cars also use large bearing.

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