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Thread: 1999 5.3 to 6.0 swap.

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  1. #1
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,540
    maybe you could locate a newer 6L crank and swap them out. Also an excellent time to add some ARP rod bolts.
    See my truck data in the "My Garage" section here... http://www.ls1truck.com/forums/my-ga...tml#post191709

  2. #2
    Join Date
    Sep 2007
    Location
    Broken Bow, OK
    Posts
    1,434
    No the output shaft of the 4L80e is different than the 4L60e. The input on the transfer case can be changed in most cases.

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