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Gearing for 08 tundra

Discussion in 'General Tundra Discussion' started by dargelchris, Feb 10, 2016.

  1. Feb 10, 2016 at 1:51 PM
    #1
    dargelchris

    dargelchris [OP] New Member

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    I just put 35" tires on my truck and I noticed quite a power difference even with my bullydog GT chip. I have the 49 state legal and I live in Cali (where it isn't legal of course). I am looking at putting 4:10 gearing and I would like some input on different opinions??
     
  2. Feb 10, 2016 at 4:08 PM
    #2
    Sean266

    Sean266 #ThinBlueLine Staff Member

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    Which tires did u add? I had Toyo M/T 35" and definitely felt a difference. When I added a Hypertech speedometer calibrator it fixed most of it.
     
  3. Feb 10, 2016 at 6:14 PM
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    bobeast

    bobeast really old member

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    I put 35s on and didn't notice any difference. Maybe my SOP dyno is broken. In any case you mentioned 4:10s. What is your current ratio? Mine came stock with 4.30:1.

    The reason I ask is that to compensate for taller tires you'd need a lower ratio (numerically higher) than what you have now.
     
    Last edited: Feb 11, 2016
    Sefferston likes this.
  4. Feb 10, 2016 at 7:13 PM
    #4
    csuviper

    csuviper Moderator Staff Member

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    Some Mods :) See build thread for details
    ^exactly what bob said.

    5.7 with tow package is 4.30, without is 4.10
    4.6 with tow package is 4.10, without is 3.90
     
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  5. Feb 10, 2016 at 10:06 PM
    #5
    dirtydeeds

    dirtydeeds New Member Vendor

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    Rule of thumb with gearing. Choose the ratio that brings everything back to stock numerically, then the next more aggressive ratio to make up for the weight of re new tires.

    Unfortunately with a tundra we don't have that option yet:(

    Our only option besides stock is 4.88, and 4.88 numerically brings it back to stock.

    That said, I'd much rather have 4.88's with 35's than 4.10 or 4.30;)

    Give a call with any questions. And for a quote on Nitro Gears. I am able to swing deep discounts with the volume that I sell;)

    Keith 760-877-4234
     
  6. Feb 11, 2016 at 1:08 PM
    #6
    Sefferston

    Sefferston #35sandlongtravel

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    4.88, to me, only makes sense if you're running 37's.
     
  7. Feb 11, 2016 at 5:31 PM
    #7
    matluth

    matluth Fish On!

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    Unless you live in CO mountains. 4.88's would be a nice upgrade. LA freeways, probably not a good idea. 4.30 :1 is pushing it with 35's. Still pretty good. Chev/GMC offers 3.07 gears if your worried about mph's. Can't imagine how crappy they run with 33's let alone 35's.
     
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