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Re-calibrate speedometer

Discussion in 'Wheels & Tires' started by cjstead07840, Apr 2, 2013.

  1. Apr 2, 2013 at 6:38 PM
    #1
    cjstead07840

    cjstead07840 [OP] Member

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    Christopher
    Orangeburg, New York
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    Hey guys, im new to this website but from the looks of it everyone is very helpful. I have the 2013 access cab 2wd with 215/70r15 tires on it and I want to put the 235/75 r 15 on there to beef it up a little. question is since the truck is brand new I want to do it right. anyone know how to recalibrate the speedometer to match the wheel change?
     
  2. Apr 2, 2013 at 6:52 PM
    #2
    worthywads

    worthywads Well-Known Member

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    That should actually almost perfectly adjust your speedometer to read correct.

    You should check your current speed with a gps. Mine reads about 5% slow or when the speedometer is showing 60 it is really 57.

    Going to 235/75/15 is about 7.6% different, so no really need to recalibrate, 60 would be really 61.
     
    Last edited: Apr 2, 2013
  3. Apr 3, 2013 at 5:04 AM
    #3
    cjstead07840

    cjstead07840 [OP] Member

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    Oh sweet thank you so much!
     
  4. Apr 3, 2013 at 5:22 AM
    #4
    EricTheRed

    EricTheRed Damn dirty Swede

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    BHLM, General Grabber A/T2 235/75R15 on stockers, Magnaflow 11225, Tonneau cover, Pop 'n Lock, Lots of dog hair...
    I can second that opinion. 235/75R15 puts my speed dead-on with GPS and radar speed monitors.

    The only "issue" is that your odometer will now be under reporting by 7%.
     
  5. Apr 6, 2013 at 10:18 AM
    #5
    cjstead07840

    cjstead07840 [OP] Member

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    when you say "The only "issue" is that your odometer will now be under reporting by 7%" what exactly do you mean???
     
  6. Apr 6, 2013 at 5:20 PM
    #6
    Raz4back

    Raz4back Well-Known Member

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    Blacked out badges, Tinted Tail Lights, Fog Light Anytime Mod, Sock Monkey Bedside Decal, Painted Wheels, 20% Tint on Front Windows, 886 Bulb Backup Light Mod, Plasti Dip Rear Bumper (temporary until I get color matched), Color Matched Grill, Front Emblem, Door Handles, Mirrors, Bilstein 5100 all around, front set at 1.75, 1.5 aal, Crossfab light bar with 3 Hella Black Magic 500s, TRS Retrofit with D2S Projectors and Apollo Shrouds, BHLM with color matched Bowls and shrouds, CSJumper LED interior kit, CSJumper LED switchback DTRLs and Side Markers, 17x9 -12 Offset Ballistic Jester Wheels, 255x75x17 Nitto Trail Grapplers
    The speedometer reads fast stock, but the odometer/trip is accurate. With the new tires your speedometer will be correct, but after traveling 100 miles your odometer will only show that you drove 93, so its a win win situation. When you reach the end of your 36k warranty you will have actually driven a little over 38k
     
    Last edited: Apr 6, 2013
  7. Apr 7, 2013 at 8:39 AM
    #7
    cjstead07840

    cjstead07840 [OP] Member

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    that's a good point thank you!!!
     
  8. Apr 9, 2013 at 5:47 PM
    #8
    NiceTaco

    NiceTaco Canadian Redneck

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    See this is the exact thing that I question about my stealer giving me a hard time on.:tumbleweed:
     
  9. Apr 10, 2013 at 4:52 PM
    #9
    cjstead07840

    cjstead07840 [OP] Member

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    would there be anywhere I can go to get it calibrated accordingly? I went to mavis discount tire today and put the goodyear wrangler radials 235/75r15 on the truck today and he had no idea on how to calibrate it accordingly so I don't know where to go if I choose to do it
     
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