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Thread: 1999 5.3 to 6.0 swap.

  1. #1
    Join Date
    Nov 2011
    Location
    NH
    Posts
    109

    1999 5.3 to 6.0 swap.

    so i am in the process of getting the 6,0 into my 1500. found out the engine i bought has the long crank in it so i cant bolt it up to the tranny in the truck. so i need to swap the 4l60e for a 4l80e. i just am wondering if the transfercase off the 60e will bolt to the 80e??? trying to save all the money i can. THANKS

  2. #2
    Join Date
    Nov 2003
    Location
    Denton Texas
    Posts
    20,689
    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

  3. #3
    Join Date
    Sep 2007
    Location
    Broken Bow, OK
    Posts
    1,441
    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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