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  1. 03-09-2010 11:57 PM #1
    RedHeartbeat
    RedHeartbeat is offline WTH JUST HAPPENED?
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    The PN of the parts currently inside the 2007 GMT900 4L60e trans is...

    Cap 8642485
    4th apply piston 8642482
    Piston 8642553 and approximately 2.280 diameter
    out cylinder that fits on the piston 8642466

    not sure on the size of a Corvette servo piston. Anyone have one they bought and haven't installed yet?
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709
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  2. 08-27-2010 11:27 AM #2
    gottaswapup
    gottaswapup is offline Senior Member
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    Quote Originally Posted by RedHeartbeat View Post
    The PN of the parts currently inside the 2007 GMT900 4L60e trans is...

    Cap 8642485
    4th apply piston 8642482
    Piston 8642553 and approximately 2.280 diameter
    out cylinder that fits on the piston 8642466

    not sure on the size of a Corvette servo piston. Anyone have one they bought and haven't installed yet?
    vette servo is more like 1.8"
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