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Tire size and speedo readings

Discussion in 'Wheels & Tires' started by bull, May 31, 2009.

  1. May 31, 2009 at 6:22 AM
    #1
    bull

    bull [OP] Member

    Joined:
    Dec 13, 2008
    Member:
    #11541
    Messages:
    7
    Gender:
    Male
    Mississippi
    Vehicle:
    TRD
    Thanks in advance for answers to my questions--

    I have a 2008 doublecab 4x4 TRD with 265-70-16 tires. The tires are ready to be replaced and I'm thinking that I will go with 265-75-16 tires .
    According to the tire size calculator, I should see about a 2 mph increase in actual speed vs the speedometer reading.

    According to my GPS, my speedo reading with the current tires is off by about 2 mph (speedo says 67 vs GPS 65 ).

    So....will the taller tires give me a more accurate speedo reading?

    Any feedback on Goodyear Wrangler TD's?
     
  2. May 31, 2009 at 6:24 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
    May 8, 2008
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    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    Your speedo may read more accurately, but the ODO will be off a bit...
     
  3. Dec 6, 2016 at 3:31 AM
    #3
    HillJackJDS

    HillJackJDS New Member

    Joined:
    Tuesday
    Member:
    #204147
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    1
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    Male
    First Name:
    Dale
    Vehicle:
    2008 Tacoma 4WD
    I bought a used 2008 Tacoma. It has larger than factory tires. It looks great, but my speedometer is off, reading for example, 65mph at 60mph (by GPS). I was hoping the correction would be as simple as a reflash of the computer. I see folks showing $90 "signal multipliers" and the such on here to accommodate this change... There's no easier way?!!?!? I can accept the problem for a lot less than $90 and simultaneously keep my son from unconsciously speeding if he ever learns to drive my standard transmission...
     
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