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Thread: 4l80e swap transfer questions

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

    4l80e swap transfer questions

    so i got a 96 4l80 to swap into my 99 nbs gmc sierra 4x4. who makes a adapter to run my stock transfer case??? and is there anything else i need besides wiring adapt and driveshafts?? THANKS

  2. #2
    Join Date
    Mar 2010
    Location
    San Antonio, Tx
    Posts
    355
    You will need to modify your crossmember and get your PCM flashed with 80e programming. Also if running the 80e converter you need a different flexplate.
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  3. #3
    Join Date
    Dec 2007
    Location
    Ponca City
    Posts
    1,606
    Look on silverado SS. There's info in where to get that adapter
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