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Thread: 4l60 help

  1. #1

    4l60 help

    wondering if anyone had a good trans tune stock trans 275/65 r 20 tires shift points are off kinda searches any help would be appreciated TIA 2012 silverado 4.8 4l60E

  2. #2
    Advanced Tuner TheMechanic's Avatar
    Join Date
    Jan 2014
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    SoCal
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    476
    Blue cat, gear tire wizard and it would help if you post in the GM transmission area not the GM Diesel area.