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Thread: Quick speedo question

  1. #1

    Quick speedo question

    If my speedo is 1 MPH slower than what the GPS is reporting do i have the tire size too big or too small?

  2. #2
    Tuner kabbott's Avatar
    Join Date
    Sep 2004
    Location
    Ba co. Md
    Posts
    121
    HMMMMM To small
    2000 Impala 3.8
    4T65Ehd 3.29
    VCM ID:7DS739259ui
    VCM OS ID:9387047

  3. #3
    Ok.