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Thread: 5.3 lm7 wire harness question

  1. #1
    Join Date
    Dec 2013
    Posts
    22

    5.3 lm7 wire harness question

    I'm starting my 4.3 to 5.3 conversion in my 1992 GMC. I'm using the nv3500 standard shift transmission at least for now. My question is if I leave all of the 4l60 wiring in the harness so that I can put a 4l60 in later, will that cause any issues. I have HP tuners and can handle all the tuning myself.

  2. #2
    Join Date
    Mar 2003
    Location
    San Antonio, TX
    Posts
    11,038
    Just seal it up and it'll be there when u need it.

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