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225/75/R15 to 30/9.5/R15, Regear?

Discussion in '4 Cylinder' started by tacoma02, Jun 13, 2010.

  1. Jun 13, 2010 at 8:20 AM
    #1
    tacoma02

    tacoma02 [OP] Well-Known Member

    Joined:
    Mar 26, 2010
    Member:
    #33996
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    96
    Gender:
    Male
    Vehicle:
    2002 Toyota Tacoma 2.7L 4 Cylinder
    Thrush Welded Muffler Westin safari light bar
    I have a 2002 2.7L auto 4x4 and i dont know the current gearing i have. I was wondering if i were to go from 225/75R15 tires to 30in tires if regearing would be necessary and if the 30in tires would decrease my mpg and acceleration to much
     
  2. Jun 13, 2010 at 11:18 AM
    #2
    toycar18

    toycar18 Well-Known Member

    Joined:
    Apr 24, 2010
    Member:
    #35896
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    226
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    Male
    Colorado
    Vehicle:
    98 Reg Cab 2.7L
    OME Suspension, BFG 33x10.50 AT, Light Racing Upper Control Arms, Rear ARB Air Locker, LCE Header, Dynomax Super Turbo Muffler, K&N Intake
    I had 3.58s and went from 29s to 31s and I wish I re-geared - I am finally changing the gears.

    Very underpowered on hills and especially high altitude in Colorado. Lower speeds are fine but highway speeds I constantly had to shift down to 4th gear for more power.

    If you have something like 3.91 or 4.10s - you should be fine.

    TO FIND OUT WHAT GEARS YOU HAVE

    http://www.brian894x4.com/Gearratiosanddiffs.html

    Or just try it and worry about changing gears later.

    Also my speedo wasn't effected much. All of my speeding tickets were exactly what I was going. Everyone said it will affect it but that was not the case for me.
     
  3. Jun 13, 2010 at 12:21 PM
    #3
    tacoma02

    tacoma02 [OP] Well-Known Member

    Joined:
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    Member:
    #33996
    Messages:
    96
    Gender:
    Male
    Vehicle:
    2002 Toyota Tacoma 2.7L 4 Cylinder
    Thrush Welded Muffler Westin safari light bar
    yeah i just looked up my gear ratio and its a 4.10, so hopefully that good, thanks for that link
     
  4. Jun 13, 2010 at 12:29 PM
    #4
    toycar18

    toycar18 Well-Known Member

    Joined:
    Apr 24, 2010
    Member:
    #35896
    Messages:
    226
    Gender:
    Male
    Colorado
    Vehicle:
    98 Reg Cab 2.7L
    OME Suspension, BFG 33x10.50 AT, Light Racing Upper Control Arms, Rear ARB Air Locker, LCE Header, Dynomax Super Turbo Muffler, K&N Intake
    You will be fine even with 31s or 32s
     
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