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Does anyone change their gear ratios with larger tires?

Discussion in '2nd Gen. Tacomas (2005-2015)' started by 10taco, Dec 23, 2009.

  1. Dec 23, 2009 at 4:20 PM
    #1
    10taco

    10taco [OP] Well-Known Member

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    I was looking at a really nice '09 Taco 4WD DC (presumably 6 cyl) on TW; the owner had installed lift and 285's. Nothing was mentioned about installing lower gears to compensate for the bigger tires. I want to install 265's on my '10 reg cab 4WD 4CYL man trans (4:10 stock gears) and want to know if any owners have done any gear changes when installing larger tires. I could probably look up the recommended ratio but would like to hear from others who may have already done this. All replies encouraged, thanks in advance!;)
     
  2. Dec 23, 2009 at 4:21 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    4.10 gears, sliders, and lots of buttons.
    I will change the gears if I increase the tire size more than 10%
     
  3. Dec 23, 2009 at 10:58 PM
    #3
    2.7taco

    2.7taco Well-Known Member

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    Fat Bobs 2.75 lift and level with short AAL, 16x8 Level 8 Guardian Wheels, 245/75R16 Toyo Open Country ATII, custom trans shift kit(home made), Trans temp. and Vac gauge, URD fuel pump upgrade(going back to stock soon).
    I have a 2WD 5lug with 235/75R16's around 3" taller than the factory tires I would look into a Hypertech n-Line Speedometer Calibrator Module but to fully correct the gear ratios you would have to change your ring and pinion.
     
  4. Dec 24, 2009 at 4:25 AM
    #4
    Janster

    Janster Old & Forgetful

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    People do it a lot.

    However - it's an expensive process (installation & parts). If its not done right, could destroy things prematurely. In other words - the installation isn't something a backyard mechanic can do hap-hazardly.

    Generally - I wouldn't do gears unless you need to move up a good amount (say for instance 4.88's) or you plan on putting even bigger tires on in the future OR want to install a locker.
     
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